I still have my previous 2.5" Cattman as well it's not as mellow as the 3"....My favorite setup was with the Oem rear muffler and the Cattman 2.5" bpipe .......

 

Can't wait to get those headers, minor drone but don't usually be in it, wife and kid was still knocked out on the 300 plus mile trip.to Vegas but want to see the volume increase with the headers probably louder inside and pure joy outside....

 

Your family thinks it volume is loud now! Wait til you put some headers on.....it's gets a little louder and gurgles,and burbles.....I love it!!!!!!!

 

Haha yeah, when I first installed my headers, I thought there was something wrong 'cause of the 'header gurgle'.

 

So, let's start with "research." This research we all have done, especially in thisforum actually is based on opinion. Therefore, it's really not research, but more so heresay. Real research would be with data and hard facts. Which as we all know, in the car world, on this application, is highly variable since we don't all have the identical constants/controls.

Next, 2.5" catman was not available. Not being made, not being sold, not brand new. I wanted a performance system. So, I was left with 3" setup.

For the purpose of being succinct, I heard cattman was the best, and in speaking to brian, I knew it was the best. He's a stand up guy and backs his product with more knowledge than most everyone on this forum.

Again, so what about performance? I'm not tracking my vehicle. It's a daily driver for me. Yes, I enjoy dusting others who don't expect my otherwise sleeper max to do what it does. The noise bothers me. It's my opinion. Again, where else to ask these questions other than this forum, where there are experts.

My "research" (if reading through opinion and listening to canned youtube videos, recorded with varying sound quality and played back with even more varied sound quality can be called research) is flawed. However, the data and results are flawed as well. It's like saying a sound is loud, while listening to it through a phone as it is being played back on a notebook computer. Whereas if someone said, the sound is loud, because it's at -10dB. That quantifies it. I have yet to see that, so yes, my "research" is as flawed as the data I have to review.

Lastly, who gives a flying leap? I am asking for help, and so, some nice souls have pointed me in the right direction. Others, just like to stand by, jeer, and make faces.

Bottomline, there was no 2.5" cattman avail brand new. So, I went with the next best thing...

 

Just as an update, I've ordered the Dynomax 17957 (+4L) and for added measure ordered some of the dynatech Cone inserts. There's a reputable muffler shop that will make the Axle pipe with flange for around $60 where I live.

Anyone know where I can order the correct "Y" tailpipe to keep the stock look? The muffler place may have it, but I just wanna have everything ready, just in case they don't keep that stuff on hand.

Just as an aside, my "research" has found that Dynomax is a division of Walker, go figure.

 

good price man

 

I want to reinterrate the fact that the muffler shop doesn't need to build it (the Dynomax axle pipe) up too the Bpipe flange, that's after the last 90 degree turn! But built it only up to the slip joint!!!!!!!!!
See the Slipjoint????????????????????

 

Oh yes! I forgot all about that! Bro, you just saved me a few greenbacks!!

Power to those that help!

 

I gave you all the suggestions and advice that I had in mind in a previous post. I guess it's easy to forget when you're not happy to hear the rest of what I had to say. Regardless, good luck getting it figured out. Worst case scenario, you can always look back on mine and NmexMAX's suggestions and swap to a 2.5" setup for quiet.

 

Bro, You have to recall that I used your suggestion to go ahead with the Dynomax VT. I didn't point it out as I thought it was obvious. But, like you, I like a few parting jabs as well. In any case, thanks for your help.

I guess, if worse comes to worse, I can do a 2.5" setup. But as Cmax has pointed out to me, one thing at a time. So we'll do this and see.

Maybe I'll post some before and after sound clips. Though, I doubt my mic can really pick up the bass to really appreciate what it is like....what I liken it to is the 60hz hum you get in a home subwoofer that doesn't have an insulated cable...the sub being 150watt and set to volume of 7-8. (As you can see, I've had that issue as well).

 

Honestly the main reason I was pushing the 2.5" setup is because of the ridiculous amount of money I spent over the last couple of years trying to get both the exhaust note I wanted and performance I wanted by doing 1 small thing at a time until I finally just bought the cattman 3", when I should have just had a custom mandrel 3" made in the first place (cattman 3" wasn't available at the time). It may be that you will have more power, quieter and for cheaper with a 2.5" B-pipe and 2.5" walker muffler (guaranteed to be quiet) than what experimenting with the 3" will end you up with. I guess my posts didn't really convey that line of thought and came across the wrong way.

Yes it is very difficult to transmit the real sound and especially volume of an exhaust setup. Even more so if the video is taken at extremely close range with a microphone that adjusts to loud sounds or if it's played back on anything short of a high end speaker setup or decent headphones. Listening to my youtube videos on the laptop as opposed to the nice speaker setup or headphones i normally use at my home PC, it could be a different car all together.

The only thing I like about drone with this exhaust is that it sounds really cool outside the car, especially in the 2500ish rpm area. My commutes are all pretty short and I just shift out of the drone on the highway if it really bothers me on longer trips, but that is a great boon for the 6 speed when it comes to noisy cars.

 

I hope Spideymon is able to order a 3" Dynomax VT and build it to fit the existing forward half of the rear muffler section.......No chopping needed on the Cattman system at all! Trying to sell the 3" that you have already could be a challenge.....but using it would save you a lot of hassle and money!!!

 

Damn I love the way it sounds .. I have the Megan and it's really quiet , would I have something close to this sound once I get my headers ? Cuz if not I may sell my Megan and get this

 

Trying to save cash and save a little extra for the headers heard he is suppose to start production in a month or so. Hopefully I have the cash so I can get the full Cattman Experience......

 

The sound you have without headers will no longer apply with headers. Much louder and different tone all together. This 3" will probably give around the same volume as a megan all other things equal.

If you want the sound shown in most of the 3" videos floating around, you'll want equal length headers/Y-pipe , a fastcat or test pipe, and the cattman 3".

 

I think the FastCat and test pipe are entirely 2 different sounds, the testpipe being more raspy and the Fastcat/ WSP Metallic Cat sounding more mellow...

 

Yes, testpipe definitely increases rasp and exhaust pops over a cat, but a little extra resonator solves that. If I wasn't trying to find every little 1hp hiding somewhere, I would probably have just bought a fastcat or a 3" high flow cat.

 

Ok when's the next batch? Just reading reviews sound good. Being on a damn budget last yeat I got the Custom Maxima Greddy KO. I haven't listened to any clips yet, but I think this could benefit my setup and it doesn't seem like it would be any louder then the CM Greddy KO based on reviews.

 

http://forums.maxima.org/5th-generat...ack-stock.html

 

I think Cattman should offer both 2.5" and 3.0" since there's quite alot of interest in the 2.5" catback still.....Make a 5-10 person group buy list and see what happens......I guarantee those not interested in 3.0" system will line up too purchase the infamous 2.5" Classic......

 

As someone indicated, I still have a couple 3" 5th gen catbacks in stock right now. You snooze, you lose, so give us a call! 800.759.9920, open 9-5 MST, M-F.

Brian

 

i used to own a real greddy evo2 and the cattman defeats all that i've heard. if your looking for the perfect sound and performance, cattman is the way to go. i ordered a megan and almost purchased it just to save a buck. ive learned my lesson and to never settle cuz your broke, wait a couple more months and quality will make it all worth it. not to mention the resale value... cattmans are still a pretty penny when resold on the org.

 

You get what you pay for........and in the long run most of those who choose the El Cheapo route, spend quite a bit more trying to compensate for and obtain that rich Cattman sound.....when all they had to do was buy that Cattman exhaust new or used!

 

Agreed! I'd get a Cattman 2.5" in a heartbeat if it was still offered!

 

Do what this man says. You know you want your car to sound like this

 

Good Grief....................WOW

 

*drool* I'm on order for the headers but gonna have to wait on catback. Dirt bike is top priority at the moment lol

 

INSPIRATIONAL...

 

Unbeleiveable!!!!!!!This guy's a MAD MAXIMA SCIENTIST.......Wow x 2!!!!! Burning oil Sparks?

 

My dyno thread explains the smoke. It looks blueish on the camera, but was black in person... My rev limiter is an ignition cut from the N2MB WOT box, and when it hits the cut, dumps a bunch of fuel and results in smoke/exhaust pops.

 

Very impressive.....I must say.....So you and Jaypee are pretty close as far as power output now! What Jaypee's secret? He know's something and it appears you're closing the gap...quickly!!!!

 

This is the best exhaust system for maximas I installed it last night and can't stop driving the car I love the way it sounds ! Cattman header/ypipe/3" cattback

 

I've got his pre-cam numbers beat pretty handily.

The secret must be the cattman 3"!!!!

There are now 2 cattman 3" equipped 5.5 gens in the mid 12s 1/4 mile and over 280 whp...

 

Now put the 2.5" Cattman back on to show how much the 3"gained over it!

 

That has already been done, and I never owned a 2.5" cattman.

 

What were you running before the 3" Cattman? Something with a flowmaster muffler and your infamous 3" cutout.....

 

Oh what a list... Let's see...

Stock Bpipe with muffler delete (before headers)
Stock Bpipe with flowmaster 40 series
Stock Bpipe with flowmaster 50 series
Stock Bpipe with thrush turbo muffler
"custom" under car dump with 2 resonators
Tsudo catback
Tsudo catback with extra resonator
Tsudo catback with extra resonator and thrush turbo muffler

Several other random minor combinations of the above included between...

Finally... cattman 3".

All previous track PBs were done with exhaust completely unbolted, open Y-pipe. Recent PBs were done with the cattman 3" bolted up and sounding nice.

 

Damn I thought my 3 systems were alot.....you got me beat in all categories....No wonder you love that 3" Cattman!!!!!

 

Which resonator configuration will be quieter with 2.5" inlet/outlets assuming all else is equal? A 4"dia x 22"long body, vs. 6"dia x 18"long body.