Im trying to make a decision about which exhaust to get... Im buy cattman headers and probably one of his catbacks too. Anybody have experience with these? is the 3" worth the extra money? Or, would you recommend a different exhaust, custom 3", megan, greddy.....

 

yes 3" is worth the extra $$$ wherever you get it from

 

Custom or Cattman 3" is the way to go.

 

^^^ +1 a better way to say what i said

 

^^^ +1 cattman 3" FTW

 

Cattman 3" is the way to go! I can attest to that!!!

 

3" or , 3" or

Basically...3" or :matt93se:

Tis unanimous...

 

I thought 3" would be more for a car with forced induction? I thought you would lose too much back pressure for it to have any gains with a n/a engine.

 

thats what the thought was at first, understandably so too, until actual tests was done, actually makes for better power... i guess the thing to do was to get a slightly bigger piping to add to HP gains and i guess if oem piping was 2.25 then its fit to do 2.5" because of that whole back pressure theory, but i guess with the 3" back pressure is still there so is power

 

Anyone with a dyno of a 3 inch VQ35DE ?

 

3" is the way to go.

 

yes, multiple and they have been floating around the forums for a long time first person to do it i think was merlyn, who sold his prototype 3" to jaypee who dynoed 270 suttn IIRC N/A

 

hmm ok , I guess I'll do some more digging for that Single exhuast

 

Cause this thread was worth posting...

 

Why a single... for a sweet sounding 6th gen, 3" B-pipe with 22" resonator and stock tips (stock tips looks good already on the 6th)

 

Yeah, he did make some good gains. i can't wait till i can afford mine...lol. get rid of my 2.5 and upgrade to a 3"

 

Now you know I'm not going there with you again

Remember Dues's thread way back when.

 

Cost for getting a custom exhaust done $300

Cost for Cattman $700

just food for thought

 

 

Cattman 3'' if you have the $ or custom 3''

Go big because you dont want to have to redo it later..

 

i wouldnt got bigger than 2.5" on a n/a motor. i only have 2.25"

 

for the 5.5 guys

22" resonator and a custom piping
and it should sound suttn like this, granted he's using a 2.5" custom... to be sure you can run a 26" resonator
http://www.youtube.com/watch?v=dwxy8IzLXiU

 

actually thats my next setup lol im gonna be doing a 3" also, not right this second though

 

3" has been long proven to be great for all VQ engines. I had the 3" on my 3.0, and there was a huge difference

 

isnt that stock diameter??? any reason why he shouldnt go bigger, im sure u can explain to us

 

Im thinkin bout getting rid of my B-pipe. Will 3 inch make a diff? Im keeping stock muffler cuz I dont wanna be all loud. I have one cat left and will get rid of that as well. Will 3 inch B-pipe make a diff on stock muffler considering the bottleneck will be where the rear section bolts up?

 

I'm afraid if you keep the stock muffler your gains will be dramatically less. Get a Long Magnaflow muffler and a LONG magnaflow resonator...it will will keep the noise down

 

aww... I had a review at work and Im not getting a raise any time soon ... Im going with megan cat back. I cant justify $700 in todays uncertain economic climate

 

If I get the 3inch B-pipe and use stock muffler temporarily, do I risk blowing up the muffler? Ive seen org members blow up their muffler and wonder if doing this if I will be at risk...

 

i like my cattman 3"

 

and when u say "blow up" the exhaust??? can u get more in depth with that??

 

I've got a 2.5" Cattman catback exhaust system in which I ran at the track and honestly I so no difference between the Oem muffler and the Cattman muffler when running the 1/4 mile.

 

ya I dont think you get any difference with just exhaust unless you have headers or ypipe.... I think stock header is only 2.25" or so

 

Without knowing anything else about the OP's combination, 2.5" is a little on the small side - and 3" is about the same amount too big. I think the 3rd generation Camaros actually did use 2.75", which would also be a valid size here. But it's not common.

So it'll come down to the type of driving. For mostly lower rpm driving with relatively minor mods and no serious racing, 2.5" is adequate. If you're WOT at high rpms a lot and make significantly more power than stock, go with the 3".


Edit and FWIW, I voted 'other' because I rate creativity and custom work a lot more highly than "checkbook engineering & modification". Build your own.


Norm

 

^^^ ???