Carltonator: 18"long/ 6" round Magnaflow
#41
I just got rid of the y pipe completely and went with a dual in single out Magnaflow resonator. 2 1/4 inlet 2 1/2 outlet and also removed that bracket that was mentioned above. It's been off for a few years now and have also done some exhaust jobs on maximas that I have removed. No harm done to mine and no complaints from customers so must be ok! Lol
#43
Ok so you have cattman headers, yes? So the two front o2 sensors are on the headers themselves. Then where do you have your secondaries placed? On the longer portion of tubing right before the 30" MF resonator? On the Ypipe? They don't throw a code with the cat removed?
Yeah louvered resonators seem to really have a bad rap. Though I've tried, I cannot find any data or measure for 'how bad' the flow restriction really is. I spoke to the owner of a muffler shop recently and he said "our louvered resonators only cause a 7% reduction in exhaust flow"... but that's the best I've found. I wonder how quiet the system would be using that MF 30" w a louvered core.... and if you'd notice a loss of power.
#45
#46
This was before i welded it all up and got it straight and all that.. But you get the idea.. I have gutted pre cats. Not third cat. And a Flowmaster muffler with a tip. Also added in the glasspack behind the dual in single out resonator to tone it down. It sounded good but man was it noisy.
Last edited by NmexMAX; 02-08-2014 at 02:07 PM.
#47
Nice innovative thinking.....I think you would've had a better design using this Magnaflow muffler:
http://www.magnaflow.com/02product/s...=main&id=11465
Or using a Magnaflow Tru-Y transition p/n:10758 and a 27" long 6" round muffler p/n:12640, If this is a 2.5" system!
http://www.magnaflow.com/02product/s...=main&id=11886
http://www.magnaflow.com/02product/s...=main&id=11459
http://www.magnaflow.com/02product/s...=main&id=11465
Or using a Magnaflow Tru-Y transition p/n:10758 and a 27" long 6" round muffler p/n:12640, If this is a 2.5" system!
http://www.magnaflow.com/02product/s...=main&id=11886
http://www.magnaflow.com/02product/s...=main&id=11459
Last edited by CMax03; 02-09-2014 at 08:47 AM.
#49
This was before i welded it all up and got it straight and all that.. But you get the idea.. I have gutted pre cats. Not third cat. And a Flowmaster muffler with a tip. Also added in the glasspack behind the dual in single out resonator to tone it down. It sounded good but man was it noisy.
#51
This was before i welded it all up and got it straight and all that.. But you get the idea.. I have gutted pre cats. Not third cat. And a Flowmaster muffler with a tip. Also added in the glasspack behind the dual in single out resonator to tone it down. It sounded good but man was it noisy.
And there's no check engine light with the main cat deleted?
#52
This was before i welded it all up and got it straight and all that.. But you get the idea.. I have gutted pre cats. Not third cat. And a Flowmaster muffler with a tip. Also added in the glasspack behind the dual in single out resonator to tone it down. It sounded good but man was it noisy.
Nice work Man...
#54
#57
Mules5555, what size tubing was used here? Let Us know how it runs on the street cause it looks like you will have alot of vibration transmitted from that muffler throw the floor cause it's to wide....After the resonator is this stock size tubing or larger? how about a video?
#58
Mules5555, what size tubing was used here? Let Us know how it runs on the street cause it looks like you will have alot of vibration transmitted from that muffler throw the floor cause it's to wide....After the resonator is this stock size tubing or larger? how about a video?
#59
I can work on getting a vid. It's 2 1/4 pipe from flex pipes into dual in single out resonator. Then 21/2 pipe out right into a glasspack the 21/2 pipe all the way to the back with a Flowmaster and then a stainless steel tip. My pre cats are gutted. No vibration there is plenty of gap all the way around it. Sounds great and I love it. I had to do something. My stock y-pipe was rusted and leaking.
#60
i don't know where to begin but I need help redoing all of my exhaust.
lets start from from to back
I plan to gut my precats (very over due, and no headers so please dont suggest)
-should I get a y pipe?
-if I get a test pipe, I fail omissions right?
-the b pipe is what the carltonator is, what are my options here? ( i know keeping the piping thickness of the y-pipe is important)
-do I go custom? keep it stock after test pipe??
I feel i have to do the precats, i just know at 175k they can't be good, and if I am going to do them, I mind as well replace the rest of the old beat up and getting loud exhaust.
-Main priorities are practicality, price, and quiet noise. It seems like the resonator is the biggest factor along with the final muffler.
Thanks, i am having trouble since every piece has options, and it could possibly get pricey and noisey!
lets start from from to back
I plan to gut my precats (very over due, and no headers so please dont suggest)
-should I get a y pipe?
-if I get a test pipe, I fail omissions right?
-the b pipe is what the carltonator is, what are my options here? ( i know keeping the piping thickness of the y-pipe is important)
-do I go custom? keep it stock after test pipe??
I feel i have to do the precats, i just know at 175k they can't be good, and if I am going to do them, I mind as well replace the rest of the old beat up and getting loud exhaust.
-Main priorities are practicality, price, and quiet noise. It seems like the resonator is the biggest factor along with the final muffler.
Thanks, i am having trouble since every piece has options, and it could possibly get pricey and noisey!
#63
whats the difference here in warpspeeds 2 y-pipes?
is this essentially packaged with a cat or test pipe? any one have expereince a magnaflow cat? or is a test pipe better just not law worthy?
VQ 2002-2003 ALUMINIZED STEEL Y PIPE MAXIMA INFINITI I30
VQ 2002-2003 Nissan Maxima INFINITI I30 W/2.5" aluminized steel mandrel bent ypipe with all gaskets and hardware NO PRE-CATS DELETED
VQ 2002-2003 Nissan Maxima INFINITI I30 W/2.5" aluminized steel mandrel bent ypipe with all gaskets and hardware NO PRE-CATS DELETED
VQ 2002-2003 ALUMINIZED STEEL Y PIPE AND "HEAVY LOADED" CAT CONVERTER INFINITI
VQ 2002-2003 Nissan Maxima INFINITI W/2.5" aluminized steel mandrel bent ypipe and hi flow "HEAVY LOADED" magnaflow catalytic converter with all gaskets and hardware *NO PRE-CATS DELETED *cat not legal in California (WILL PASS EMISSIONS IN 49 STATES, NOT CALIFORNIA)
VQ 2002-2003 Nissan Maxima INFINITI W/2.5" aluminized steel mandrel bent ypipe and hi flow "HEAVY LOADED" magnaflow catalytic converter with all gaskets and hardware *NO PRE-CATS DELETED *cat not legal in California (WILL PASS EMISSIONS IN 49 STATES, NOT CALIFORNIA)
#65
Gut the precats. I would leave the main cat on. With a test pipe in the philly area, you will fail the visual inspection unless you are tight with the garage mechanic. And, your exhaust will smell worse with a test pipe.
If the catback is intact, I would leave it alone. Any mods to it and the car gets louder and/or you will have the dreaded drone at 2k rpm.
If you need a catback, look into the walker quiet flow b pipe and muffler section. I have it now and its holding up better than the previous Bosal system.
If the catback is intact, I would leave it alone. Any mods to it and the car gets louder and/or you will have the dreaded drone at 2k rpm.
If you need a catback, look into the walker quiet flow b pipe and muffler section. I have it now and its holding up better than the previous Bosal system.
#66
Gut the precats. I would leave the main cat on. With a test pipe in the philly area, you will fail the visual inspection unless you are tight with the garage mechanic. And, your exhaust will smell worse with a test pipe.
If the catback is intact, I would leave it alone. Any mods to it and the car gets louder and/or you will have the dreaded drone at 2k rpm.
If you need a catback, look into the walker quiet flow b pipe and muffler section. I have it now and its holding up better than the previous Bosal system.
If the catback is intact, I would leave it alone. Any mods to it and the car gets louder and/or you will have the dreaded drone at 2k rpm.
If you need a catback, look into the walker quiet flow b pipe and muffler section. I have it now and its holding up better than the previous Bosal system.
i have some kind of leak around the b-pipe or resonator, and i just had a shop put one in last year this time.
and the y-pipe just looks really rough.
Thanks Talltom for your input.
#67
i don't know where to begin but I need help redoing all of my exhaust.
lets start from from to back
I plan to gut my precats (very over due, and no headers so please dont suggest)
-should I get a y pipe?
-if I get a test pipe, I fail omissions right?
-the b pipe is what the carltonator is, what are my options here? ( i know keeping the piping thickness of the y-pipe is important)
-do I go custom? keep it stock after test pipe??
I feel i have to do the precats, i just know at 175k they can't be good, and if I am going to do them, I mind as well replace the rest of the old beat up and getting loud exhaust.
-Main priorities are practicality, price, and quiet noise. It seems like the resonator is the biggest factor along with the final muffler.
Thanks, i am having trouble since every piece has options, and it could possibly get pricey and noisey!
lets start from from to back
I plan to gut my precats (very over due, and no headers so please dont suggest)
-should I get a y pipe?
-if I get a test pipe, I fail omissions right?
-the b pipe is what the carltonator is, what are my options here? ( i know keeping the piping thickness of the y-pipe is important)
-do I go custom? keep it stock after test pipe??
I feel i have to do the precats, i just know at 175k they can't be good, and if I am going to do them, I mind as well replace the rest of the old beat up and getting loud exhaust.
-Main priorities are practicality, price, and quiet noise. It seems like the resonator is the biggest factor along with the final muffler.
Thanks, i am having trouble since every piece has options, and it could possibly get pricey and noisey!
#68
The warpspeed will give you a small gain, but quite a few people on here lately had issues with theirs when they got it - mostly with the flex pipe. Some have since swapped it out before installing the y-pipe.
#69
I think gutting the precats will increase your volume slightly but what affects your sound quality is the cat the Catback...A setup I loved was the Cattman Headers, WS Metallic Substrate Cat 2.5", Cattman 2.5" Bpipe with Oem rear muffler...This setup was like a V8 snarling and gurgling upon accel and decel! Very quiet in town, absolutely no drone! So what I would do if I were you is run a Hi Flow Cat, gutted precats, a Dual O2 Sim, WS ypipe, and the Oem catback or whatever you're rocking....If noise becames an issue (which it won't if you have an OEM catback) you can always install larger Resonator!
#70
No, it won't be loud. I'm rocking gutted precats with the walker system and the stock precat. It has a slight growl to it with no drone on the highway (I do lots of driving to/from Philly area).
The warpspeed will give you a small gain, but quite a few people on here lately had issues with theirs when they got it - mostly with the flex pipe. Some have since swapped it out before installing the y-pipe.
The warpspeed will give you a small gain, but quite a few people on here lately had issues with theirs when they got it - mostly with the flex pipe. Some have since swapped it out before installing the y-pipe.
I think gutting the precats will increase your volume slightly but what affects your sound quality is the cat the Catback...A setup I loved was the Cattman Headers, WS Metallic Substrate Cat 2.5", Cattman 2.5" Bpipe with Oem rear muffler...This setup was like a V8 snarling and gurgling upon accel and decel! Very quiet in town, absolutely no drone! So what I would do if I were you is run a Hi Flow Cat, gutted precats, a Dual O2 Sim, WS ypipe, and the Oem catback or whatever you're rocking....If noise becames an issue (which it won't if you have an OEM catback) you can always install larger Resonator!
also please correct me if I i am missing something with this statement, if I get a ws y-pipe i thought the 02 sensors were plug and play? no sims, and the y-pipe has bungs in it??
Thanks a ton guys, for all these years exhaust has been lowest priority on my list. and sadly the precats should have been on the top of the list.
#71
Awesome, thanks Tom for the feedback! I read that a little too, What did they do? replace with custom flex pipe?? sounds stupid buying a new part and having half of it a waste?? ugh.
Thanks a ton Cmax. and what do you mean by warpspeed Metallic Substrate Cat 2.5"? this --> link it seems like this is that the cat they include in the y-pipe cat combo? and cattman b-pipe is another word for test pipe right? or is that the piece after cat and before muffler (long pipe with resonator)? and I thought cattman is done and gone? with your suggestion it seems practical to get the hiflow cat that ws provides as a combo, and do stock all the way back. But if there is a good reason to get any other highflow cats I am open.
also please correct me if I i am missing something with this statement, if I get a ws y-pipe i thought the 02 sensors were plug and play? no sims, and the y-pipe has bungs in it??
Thanks a ton guys, for all these years exhaust has been lowest priority on my list. and sadly the precats should have been on the top of the list.
Thanks a ton Cmax. and what do you mean by warpspeed Metallic Substrate Cat 2.5"? this --> link it seems like this is that the cat they include in the y-pipe cat combo? and cattman b-pipe is another word for test pipe right? or is that the piece after cat and before muffler (long pipe with resonator)? and I thought cattman is done and gone? with your suggestion it seems practical to get the hiflow cat that ws provides as a combo, and do stock all the way back. But if there is a good reason to get any other highflow cats I am open.
also please correct me if I i am missing something with this statement, if I get a ws y-pipe i thought the 02 sensors were plug and play? no sims, and the y-pipe has bungs in it??
Thanks a ton guys, for all these years exhaust has been lowest priority on my list. and sadly the precats should have been on the top of the list.
1. Ceramic
2. Metallic substrate (Stainless/inconel)
Bpipe is the section after the cat and b4 the rear muffler section....
A dual Sim will be necessary if you gut your precats....
Last edited by CMax03; 03-26-2015 at 10:03 AM.
#72
Awesome, thanks Tom for the feedback! I read that a little too, What did they do? replace with custom flex pipe?? sounds stupid buying a new part and having half of it a waste?? ugh.
Thanks a ton Cmax. and what do you mean by warpspeed Metallic Substrate Cat 2.5"? this --> link it seems like this is that the cat they include in the y-pipe cat combo? and cattman b-pipe is another word for test pipe right? or is that the piece after cat and before muffler (long pipe with resonator)? and I thought cattman is done and gone? with your suggestion it seems practical to get the hiflow cat that ws provides as a combo, and do stock all the way back. But if there is a good reason to get any other highflow cats I am open.
also please correct me if I i am missing something with this statement, if I get a ws y-pipe i thought the 02 sensors were plug and play? no sims, and the y-pipe has bungs in it??
Thanks a ton guys, for all these years exhaust has been lowest priority on my list. and sadly the precats should have been on the top of the list.
Thanks a ton Cmax. and what do you mean by warpspeed Metallic Substrate Cat 2.5"? this --> link it seems like this is that the cat they include in the y-pipe cat combo? and cattman b-pipe is another word for test pipe right? or is that the piece after cat and before muffler (long pipe with resonator)? and I thought cattman is done and gone? with your suggestion it seems practical to get the hiflow cat that ws provides as a combo, and do stock all the way back. But if there is a good reason to get any other highflow cats I am open.
also please correct me if I i am missing something with this statement, if I get a ws y-pipe i thought the 02 sensors were plug and play? no sims, and the y-pipe has bungs in it??
Thanks a ton guys, for all these years exhaust has been lowest priority on my list. and sadly the precats should have been on the top of the list.
And yes, you’re correct, the ws-Y has bungs on it for your existing O2’s.
#73
No the b pipe is from behind the cat to the muffler. Also, I think Cmax was just saying he had a good set-up with the Cattman B, not necessarily saying to go buy it. I had almost the same set-up, (headers, test pipe, Cattman B, stock muffler) and it was very nice. There are other b-pipes on the market available, not sure who, but I have heard of a few companies offering just the B pipe. With the 02/3 exhaust set0up, I really don’t think you’ll see much added sound if you keep your stock muffler especially if you do not get headers.
And yes, you’re correct, the ws-Y has bungs on it for your existing O2’s.
And yes, you’re correct, the ws-Y has bungs on it for your existing O2’s.
Final Plan - gut precats, ws y-pipe, ws hiflow cat, oemish b-pipe and muffler with magnaflow tips tack welded on.
#74
I am still of the opinion if you gut your pre cats or get headers, you might not get the secondary code. In 120,000+ miles and 10+ years of having headers, I have yet to this day trip a secondary O2 sensor code.
#75
Same here....Cattman Headers w/dual Sim nearly 10 years FLAWLESSLY!!!
#76
Hopefully it helps i have brand new bosh O2 sensors under 10k.
#79
i think I get it now.
#80
Cattman y-pipe didn't come with the bungs but I ended up making one for the wideband o2 sensor. The headers had bungs though