Cattman 3" Catback Exhaust - Order Here!
I might get ambitious one of these weekends, and modify my OEM flange to fit just to see if i notice any difference in MAF flow and of course sound. This is just so that everything is as reversible as possible, most namely, keeping the 3" catback untouched, (i.e. not modifying its' flanges, etc).
If you truly cannot take the noise, install a baffled resonator in there somewhere, perhaps a larger resonator in place of the one on there already, that will surely quiet it down with the obvious expense of performance.
Add a 5" resonator somewhere in the mix if you do not want to add any baffles. There are many options, but I don't think anyone has modified there 3" Cattman except for CMax & his inserts.
At some point, this thread may need to be separated because this subject has come up often enough.
If you truly cannot take the noise, install a baffled resonator in there somewhere, perhaps a larger resonator in place of the one on there already, that will surely quiet it down with the obvious expense of performance.
Add a 5" resonator somewhere in the mix if you do not want to add any baffles. There are many options, but I don't think anyone has modified there 3" Cattman except for CMax & his inserts.
At some point, this thread may need to be separated because this subject has come up often enough.
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I might get ambitious one of these weekends, and modify my OEM flange to fit just to see if i notice any difference in MAF flow and of course sound. This is just so that everything is as reversible as possible, most namely, keeping the 3" catback untouched, (i.e. not modifying its' flanges, etc).
If you truly cannot take the noise, install a baffled resonator in there somewhere, perhaps a larger resonator in place of the one on there already, that will surely quiet it down with the obvious expense of performance.
Add a 5" resonator somewhere in the mix if you do not want to add any baffles. There are many options, but I don't think anyone has modified there 3" Cattman except for CMax & his inserts.
At some point, this thread may need to be separated because this subject has come up often enough.
If you truly cannot take the noise, install a baffled resonator in there somewhere, perhaps a larger resonator in place of the one on there already, that will surely quiet it down with the obvious expense of performance.
Add a 5" resonator somewhere in the mix if you do not want to add any baffles. There are many options, but I don't think anyone has modified there 3" Cattman except for CMax & his inserts.
At some point, this thread may need to be separated because this subject has come up often enough.
Negatory, I welded in an extra 14" straight through magnaflow resonator that takes place of the test pipe and the first several inches of the B-pipe because I still had some rasp.
Well, I didn't count you since, IMO, the first 3" isn't anything really notable, since the actual cat-back isn't really being touched, nor is anything sound related either.
Yours IMO, falls under the category of test piped or not, in which case, we open the door for a few more hundred possibilities (test pipe, cat, stock cat, fast cat, resonated test pipe, how long is your test pipe, etc.)I'm speaking regarding the catback itself.
I wonder how yours would sound with everything in place, including a fast cat?
Yours IMO, falls under the category of test piped or not, in which case, we open the door for a few more hundred possibilities (test pipe, cat, stock cat, fast cat, resonated test pipe, how long is your test pipe, etc.)I'm speaking regarding the catback itself.
I wonder how yours would sound with everything in place, including a fast cat?
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Well, I didn't count you since, IMO, the first 3" isn't anything really notable, since the actual cat-back isn't really being touched, nor is anything sound related either.
Yours IMO, falls under the category of test piped or not, in which case, we open the door for a few more hundred possibilities (test pipe, cat, stock cat, fast cat, resonated test pipe, how long is your test pipe, etc.)I'm speaking regarding the catback itself.
I wonder how yours would sound with everything in place, including a fast cat?
Yours IMO, falls under the category of test piped or not, in which case, we open the door for a few more hundred possibilities (test pipe, cat, stock cat, fast cat, resonated test pipe, how long is your test pipe, etc.)I'm speaking regarding the catback itself.
I wonder how yours would sound with everything in place, including a fast cat?
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The drone RPM will not change unless you change the headers/Y-pipe design. You can make it more quiet by installing silencers, more muffling, or hindering exhaust flow, but if the exhaust makes noise, the drone will still be in the same RPM range.
Brian, I wanted to let you know we installed the 3 inch at work today, took us all of 25 minutes taking the old off and installing yours. Just a little backround I work as a mercedes benz parts manager as you can imagine, the techs cringe when they see anything aftermarket. They were all drooling as to how good the exhaust was built, and how perfect it fit I also work with a guy who races fords similar to indy cars and they were all blown away by it. Car sounds so much better now, like sex on wheels lol
I can't say it enough how great this is. I will be in touch soon for headers I think lol, you've created a monster
I can't say it enough how great this is. I will be in touch soon for headers I think lol, you've created a monster
i"ll buy your catt man 3" muffler pm me if u want to
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Honestly this has been the quietest exhaust setup on my car in over 1.5 years and I see zero reason to complain about a 3" exhaust that is this quiet. All my friends comment (or complain depending on how you take it) about how quiet and mild my exhaust sounds every time we meet up these days...
I guess some people purchased this without consideration that even if the muffler is as big as it's going to get and Brian has done everything he can to keep it quiet, it remains a straight through non baffled 3" exhaust made for performance.
Adding baffles, restrictions, silencers, and small (stock) mufflers are quieting it down at the cost of performance which seems a little counter productive to me when you spent all the extra money to purchase a quality 3" exhaust that gives good performance at all times. When instead you could have bought a cheap 2.5" and have some quiet (walker, etc) muffling installed and add a cutout for when you want/need the performance.
I guess some people purchased this without consideration that even if the muffler is as big as it's going to get and Brian has done everything he can to keep it quiet, it remains a straight through non baffled 3" exhaust made for performance.
Adding baffles, restrictions, silencers, and small (stock) mufflers are quieting it down at the cost of performance which seems a little counter productive to me when you spent all the extra money to purchase a quality 3" exhaust that gives good performance at all times. When instead you could have bought a cheap 2.5" and have some quiet (walker, etc) muffling installed and add a cutout for when you want/need the performance.
J/k
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Honestly this has been the quietest exhaust setup on my car in over 1.5 years and I see zero reason to complain about a 3" exhaust that is this quiet. All my friends comment (or complain depending on how you take it) about how quiet and mild my exhaust sounds every time we meet up these days...
I guess some people purchased this without consideration that even if the muffler is as big as it's going to get and Brian has done everything he can to keep it quiet, it remains a straight through non baffled 3" exhaust made for performance.
Adding baffles, restrictions, silencers, and small (stock) mufflers are quieting it down at the cost of performance which seems a little counter productive to me when you spent all the extra money to purchase a quality 3" exhaust that gives good performance at all times. When instead you could have bought a cheap 2.5" and have some quiet (walker, etc) muffling installed and add a cutout for when you want/need the performance.
I guess some people purchased this without consideration that even if the muffler is as big as it's going to get and Brian has done everything he can to keep it quiet, it remains a straight through non baffled 3" exhaust made for performance.
Adding baffles, restrictions, silencers, and small (stock) mufflers are quieting it down at the cost of performance which seems a little counter productive to me when you spent all the extra money to purchase a quality 3" exhaust that gives good performance at all times. When instead you could have bought a cheap 2.5" and have some quiet (walker, etc) muffling installed and add a cutout for when you want/need the performance.
Sparks, I have read enough of your posts to know that you are an instigator who likes to turn threads into flame sessions. Knowledgeable you are, but an instigator nonetheless. I will say no more on this, as I am seeking solid advice not admonishment. Who knows, someone else might benefit?
Changing subjects, I know that purchasing the silencers will not take care of the issue totally, but if the drone will just decrease by a few dB, I think it might be tolerable to me. Does anyone have any knowledge of the reduction in sound output from these things? (please no comments on cost of performance, I am aware of that.)
Last edited by spideymon; Feb 1, 2011 at 08:53 PM.
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I've found that dual outlet mufflers tend to be noisier due to the fact that muffling real estate is reduced to make room for the splitter that duals out, in the case of perforated tube/packing material style mufflers. Chambered mufflers with dual outlets seem to be noisier as well since there is less room in the final chamber for the sound waves to bounce back and forth to cancel each other out. You can test this by covering up one of the dual outlet pipes with something and giving it a few rev tests. A friend put a large case Magnaflow on his car, roughly the size of your average stocker muffler, and it was single in/out, and it had a nice quiet tone with no resonance. On a 1 to 10 scale, 1 being stock and 10 being a "bullet" muffler which hardly has any sound deadening, it was in the 3-4 range. It sounded near stock until he revved it up hard. Also, oversize tip sizes act like megaphones. My brother had a 40 series Flowmaster put on his S-10 4.3 Blazer, single in/out with no tip at first, and it sounded good. He later had the pipe trimmed back and put on an oversize slash cut tip and it increased the sound levels alot. I was amazed how much louder it made it. To sum it all up, if you want quieter tones and retain high flow, go with a larger case muffler, single out, without an oversized megaphone tip. Just my .02
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I would refer you to my original post. I have nothing against Brian or the quality of this set-up. I did do the research, Brian can attest to that. I understand that there is a performance decrease if I fiddle with it. So what? It's my money and my vehicle. If I want to run a 1" Exhaust and muffle it through a water tank..what does it matter to you? I know this IS the quietest performance set up out there....But for me, I would like it a little more quieter. You like to push the envelope with performance. Kudos to you. I want to push this envelope.
Changing subjects, I know that purchasing the silencers will not take care of the issue totally, but if the drone will just decrease by a few decibles, I think it might be tolerable to me. Does anyone have any knowledge of the reduction in sound output from these things? (please no comments on cost of performance, I am aware of that.)
Changing subjects, I know that purchasing the silencers will not take care of the issue totally, but if the drone will just decrease by a few decibles, I think it might be tolerable to me. Does anyone have any knowledge of the reduction in sound output from these things? (please no comments on cost of performance, I am aware of that.)
Now in the interest of helping you, are you still running a cat converter? That can reduce volume a good deal without a big loss in power. Replacing the cattman resonator with a large (24-30" maybe) straight through glass pack, like magnaflow makes, will definitely decrease volume while needing replacement every few years depending on how much abuse it takes. Again, not a large power loss. Silencers can easily lose you as much as the headers gained for you, so I am trying to recommend options that can lower the volume without losing too much of what you paid for.
Sound insulating material in the trunk and under the heat shields can certainly help, although I do not have experience with how much it will help. I can say that simply removing the carpeting in the trunk caused a notable increase of sound inside the car, so adding material that is made to deaden sound could potentially help a great deal.
edit: one additional note.... A muffler like this http://forums.maxima.org/supercharge...er-review.html may be just the ticket for you. Not a major decrease in performance when you get on it, but works just like a silencer at low throttle inputs and cruising.
Sparks, I have read enough of your posts to know that you are an instigator who likes to turn threads into flame sessions. Knowledgeable you are, but an instigator nonetheless. I will say no more on this, as I am seeking solid advice not admonishment. Who knows, someone else might benefit?
Last edited by sparks03max; Feb 1, 2011 at 09:37 PM.
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The Dynomax VT's are becoming quite popular. I've heard a few of them in person and they are really quiet at idle and cruising speeds. I'm tempted to buy one and have it installed just out of curiosity for my car. I'd probably run it with a resonator to take out some excessive noise once that flap opens up at higher rpm's.
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The Dynomax VT's are becoming quite popular. I've heard a few of them in person and they are really quiet at idle and cruising speeds. I'm tempted to buy one and have it installed just out of curiosity for my car. I'd probably run it with a resonator to take out some excessive noise once that flap opens up at higher rpm's.
Honestly this has been the quietest exhaust setup on my car in over 1.5 years and I see zero reason to complain about a 3" exhaust that is this quiet. All my friends comment (or complain depending on how you take it) about how quiet and mild my exhaust sounds every time we meet up these days...
I guess some people purchased this without consideration that even if the muffler is as big as it's going to get and Brian has done everything he can to keep it quiet, it remains a straight through non baffled 3" exhaust made for performance.
Adding baffles, restrictions, silencers, and small (stock) mufflers are quieting it down at the cost of performance which seems a little counter productive to me when you spent all the extra money to purchase a quality 3" exhaust that gives good performance at all times. When instead you could have bought a cheap 2.5" and have some quiet (walker, etc) muffling installed and add a cutout for when you want/need the performance.
I guess some people purchased this without consideration that even if the muffler is as big as it's going to get and Brian has done everything he can to keep it quiet, it remains a straight through non baffled 3" exhaust made for performance.
Adding baffles, restrictions, silencers, and small (stock) mufflers are quieting it down at the cost of performance which seems a little counter productive to me when you spent all the extra money to purchase a quality 3" exhaust that gives good performance at all times. When instead you could have bought a cheap 2.5" and have some quiet (walker, etc) muffling installed and add a cutout for when you want/need the performance.
Last edited by NmexMAX; Feb 2, 2011 at 06:37 AM.
I might get ambitious one of these weekends, and modify my OEM flange to fit just to see if i notice any difference in MAF flow and of course sound. This is just so that everything is as reversible as possible, most namely, keeping the 3" catback untouched, (i.e. not modifying its' flanges, etc).
If you truly cannot take the noise, install a baffled resonator in there somewhere, perhaps a larger resonator in place of the one on there already, that will surely quiet it down with the obvious expense of performance.
Add a 5" resonator somewhere in the mix if you do not want to add any baffles. There are many options, but I don't think anyone has modified there 3" Cattman except for CMax & his inserts.
At some point, this thread may need to be separated because this subject has come up often enough.
If you truly cannot take the noise, install a baffled resonator in there somewhere, perhaps a larger resonator in place of the one on there already, that will surely quiet it down with the obvious expense of performance.
Add a 5" resonator somewhere in the mix if you do not want to add any baffles. There are many options, but I don't think anyone has modified there 3" Cattman except for CMax & his inserts.
At some point, this thread may need to be separated because this subject has come up often enough.
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From: VA
I understand you are saying that you did your research. I was simply pointing out that if you value quietness over performance, a 2.5" setup would have been inherently quieter with more options in that size for quiet mufflers such as the walker quiet flow and at a lower price point. I am not telling you what to run and I couldn't care less if you use a 1" exhaust. However, that does not preclude me from making observations based on your apparent goals as this is a public forum and you did ask for opinions. Of course my opinion was a reflection on your initial choice rather than assisting you...
Now in the interest of helping you, are you still running a cat converter? That can reduce volume a good deal without a big loss in power. Replacing the cattman resonator with a large (24-30" maybe) straight through glass pack, like magnaflow makes, will definitely decrease volume while needing replacement every few years depending on how much abuse it takes. Again, not a large power loss. Silencers can easily lose you as much as the headers gained for you, so I am trying to recommend options that can lower the volume without losing too much of what you paid for.
Sound insulating material in the trunk and under the heat shields can certainly help, although I do not have experience with how much it will help. I can say that simply removing the carpeting in the trunk caused a notable increase of sound inside the car, so adding material that is made to deaden sound could potentially help a great deal.
edit: one additional note.... A muffler like this http://forums.maxima.org/supercharge...er-review.html may be just the ticket for you. Not a major decrease in performance when you get on it, but works just like a silencer at low throttle inputs and cruising.
Although I do get entertainment out of instigating people into angry retorts, that is rarely my sole purpose in a post. My "admonishment" may be just the advice that someone with the same goals as you who has not yet spent the cash wants to see. Where you feel scathed, someone else might... benefit?
Now in the interest of helping you, are you still running a cat converter? That can reduce volume a good deal without a big loss in power. Replacing the cattman resonator with a large (24-30" maybe) straight through glass pack, like magnaflow makes, will definitely decrease volume while needing replacement every few years depending on how much abuse it takes. Again, not a large power loss. Silencers can easily lose you as much as the headers gained for you, so I am trying to recommend options that can lower the volume without losing too much of what you paid for.
Sound insulating material in the trunk and under the heat shields can certainly help, although I do not have experience with how much it will help. I can say that simply removing the carpeting in the trunk caused a notable increase of sound inside the car, so adding material that is made to deaden sound could potentially help a great deal.
edit: one additional note.... A muffler like this http://forums.maxima.org/supercharge...er-review.html may be just the ticket for you. Not a major decrease in performance when you get on it, but works just like a silencer at low throttle inputs and cruising.
Although I do get entertainment out of instigating people into angry retorts, that is rarely my sole purpose in a post. My "admonishment" may be just the advice that someone with the same goals as you who has not yet spent the cash wants to see. Where you feel scathed, someone else might... benefit?
Sparks, thank you for your thoughts. I had almost ditched this thread feeling that it would just turn into another slamfest.
Not too sure that I want to take apart Brian's set up to add a larger resonator.
I too noticed a DECREASE in sound after I added back the padding into the trunk (had it all out to haul back all my factory set up stuff). I've got some spare r-15 insulation, maybe I'll try tossing some in there to see if it helps...LOL.
The Dynomax VT looks promising. Too bad it doesn't have dual tips. Though, I guess I could get an adapter to make it look like it had dual tips. Wont be the same though. Though the thread seems to have some debate in terms of whether it actually is quieter than the superturbo.
So, If I went with the Dynomax VT, anyone know of a tailpipe resonator, possibly one that is a Y so I can retain dualtip look??
Last edited by spideymon; Feb 2, 2011 at 08:34 PM.
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I'm actually running naked now, took the insert out....It helped but did restrictive the breathing at the track 14.6 is all I got with the insert installed.....Which is horrible! But it will serve it's purpose....If I do install the silencers it will be for daily driving only...the exhaust is really tame @ speed.....I do this only to find solutons which may be helpful to others and myself since I have a wife that drives this beast as well....I will not do any cutting and adding extra resonators to this already well designed and beautiful piece of art....The car exhibits minimum drone as is with I/H/E and reduces that even more when manually shifting an A/T! The cone Insert was really unnoticeable in a performance standpoint during spirited street driving, But as Sparks stated it would be some power loss.....The silencers which are AEM units (SIL3000) and available at Advance Auto should do the job and I'll find out...real soon guys...this may be the ticket! Don't get it wrong I love my 3" Catback! I actually think it's quieter than the 2.5"....it's just deeper in tone but way more smoother sounding than the 2.5 Cattman
I ordered the Silencers as well. Kinda think I should cancel the order after I read about the Dynomax....But I so like the way the original cattman setup looks!
Let me know how you get around getting those puppies to fit in the tailpipes without drilling the hole for the screw (which I have no intention to do)
Stupid question, maybe its too late for me, maybe work really fried my brain today....Whhen you said "...as is with I/H/E..." what is the I/H/E ??
Last edited by spideymon; Feb 2, 2011 at 08:43 PM.
I ordered the Silencers as well. Kinda think I should cancel the order after I read about the Dynomax....But I so like the way the setup looks!
Let me know how you get around getting those puppies to fit in the tailpipes without drilling the hole for the screw (which I have no intention to do)
Let me know how you get around getting those puppies to fit in the tailpipes without drilling the hole for the screw (which I have no intention to do)
I agree, it does sounds smooth. I love the sound it makes when accelerating...out of the drone zone...Which by the way, dusted an RX-8 tonight (while I was enjoying the exhaust tones) and didn't even realize he was trying to mess with me! LOL!
I ordered the Silencers as well. Kinda think I should cancel the order after I read about the Dynomax....But I so like the way the original cattman setup looks!
Let me know how you get around getting those puppies to fit in the tailpipes without drilling the hole for the screw (which I have no intention to do)
Stupid question, maybe its too late for me, maybe work really fried my brain today....Whhen you said "...as is with I/H/E..." what is the I/H/E ??
I ordered the Silencers as well. Kinda think I should cancel the order after I read about the Dynomax....But I so like the way the original cattman setup looks!
Let me know how you get around getting those puppies to fit in the tailpipes without drilling the hole for the screw (which I have no intention to do)
Stupid question, maybe its too late for me, maybe work really fried my brain today....Whhen you said "...as is with I/H/E..." what is the I/H/E ??
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From: VA
That's the only way to secure them.....I haven't ordered them yet.....Drilling a small hole in the bottom isn't a problem for me....I'll try to install them as far forward in the tio as possible.....the nut(s) will be welded to the silencer to make it easy too install......Tell my about these Dynomax muffler you're interested in!....You know you should be able to slip fit it into the fwd part of the rear muffler section.....So no butchering should be necessary to make this fit! Only bad part is single tip option only!!! Pic please!!!!!
the link for the Website is: http://www.dynomax.com/mufflers.php?muffler=vt Tell me whatchu think
I'm kinda scare of drilling into these beauties to keep the silencers in place. (Not scared of drilling, got more power tools than most people in my profession care to even come close too). Someone made mention of some quick clips or whatever. What the heck were they referring to?
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Are these still 740$ with resonator and 650 without if so how do I buy. Also, The topic at hand is to remove the rasp from the exhaust or rasp and drone? I personally would like to have some drone to let people know I'm holding back on power and can take off at any moment.
Last edited by Sneaky Green; Feb 3, 2011 at 08:24 AM.
Resonator is standard, you would need to ask him to sell you one without.
Also, if you have a cat, as in my case, I have a fast cat, there is no rasp, drone yes, rasp no. I don't mind the drone. I guess I'm lucky where I live, I am hardly ever in the drone zone.
Either the SL is 60MPH or 80 MPH, and both of those are shy or over the zone
Also, if you have a cat, as in my case, I have a fast cat, there is no rasp, drone yes, rasp no. I don't mind the drone. I guess I'm lucky where I live, I am hardly ever in the drone zone.
Either the SL is 60MPH or 80 MPH, and both of those are shy or over the zone
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Resonator is standard, you would need to ask him to sell you one without.
Also, if you have a cat, as in my case, I have a fast cat, there is no rasp, drone yes, rasp no. I don't mind the drone. I guess I'm lucky where I live, I am hardly ever in the drone zone.
Either the SL is 60MPH or 80 MPH, and both of those are shy or over the zone
Also, if you have a cat, as in my case, I have a fast cat, there is no rasp, drone yes, rasp no. I don't mind the drone. I guess I'm lucky where I live, I am hardly ever in the drone zone.
Either the SL is 60MPH or 80 MPH, and both of those are shy or over the zone
Maybe you should just go with the 2.5 Cattman catback, or something similar (2.5" w/ large resonator) and mate it to the stock muffler.
I had that for years and it was very quiet and we all know the stock rear piece is capable of 247 whp, maybe more.
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That's weird, and I don't even have any carpet in my trunk and I don't notice it there. You're 4At I'm assuming.
Maybe you should just go with the 2.5 Cattman catback, or something similar (2.5" w/ large resonator) and mate it to the stock muffler.
I had that for years and it was very quiet and we all know the stock rear piece is capable of 247 whp, maybe more.
Maybe you should just go with the 2.5 Cattman catback, or something similar (2.5" w/ large resonator) and mate it to the stock muffler.
I had that for years and it was very quiet and we all know the stock rear piece is capable of 247 whp, maybe more.
Yes, I'm a 4AT...hence my woes. As Brian said, with the manual, you'll just shift outta that zone subconsciously. Should have swapped for the manual with slip when I did the engine and tranny swap. But, then how would I drink my drink, talk on the phone while trying to shift??
Last edited by spideymon; Feb 3, 2011 at 01:46 PM.
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That's weird, and I don't even have any carpet in my trunk and I don't notice it there. You're 4At I'm assuming.
Maybe you should just go with the 2.5 Cattman catback, or something similar (2.5" w/ large resonator) and mate it to the stock muffler.
I had that for years and it was very quiet and we all know the stock rear piece is capable of 247 whp, maybe more.
Maybe you should just go with the 2.5 Cattman catback, or something similar (2.5" w/ large resonator) and mate it to the stock muffler.
I had that for years and it was very quiet and we all know the stock rear piece is capable of 247 whp, maybe more.
But I have a 3" cattman.... Can't change that now. Researched the crap outta 3" catbacks. Never thought to research cattman 2.5 vs 3".
Yes, I'm a 4AT...hence my woes. As Brian said, with the manual, you'll just shift outta that zone subconsciously. Should have swapped for the manual with slip when I did the engine and tranny swap. But, then how would I drink my drink, talk on the phone while trying to shift??
Yes, I'm a 4AT...hence my woes. As Brian said, with the manual, you'll just shift outta that zone subconsciously. Should have swapped for the manual with slip when I did the engine and tranny swap. But, then how would I drink my drink, talk on the phone while trying to shift??
Are these still 740$ with resonator and 650 without if so how do I buy. Also, The topic at hand is to remove the rasp from the exhaust or rasp and drone? I personally would like to have some drone to let people know I'm holding back on power and can take off at any moment.
