I just picked up a vibrant header and down pipe with cat, looking to add a cat back on it . What cat back exhaust would give me the most hp? Not looking for anything loud.

 

Gmpp touring?

Although I have heard corsa is good too

 

Hahn is quiet.

 

T t t t terminator

 

ZZP 3 chamber, best for the money. You want to spend $200-$300 more, sure get GMPP maybe its better...maybe not

 

I would not want a chambered muffler on a supercharged car they do not flow very well.

 

All cat backs are gonna be about the same with gains. You're gonna want something with a resonator and a muffler that's not straight through.

 

we have an exhaust search button that works you should try it out

 

 

Any exhaust with a full 2.5'' piping will be fine and if you really want you can go for full 3'' piping. Then it's just personal preference for how it sounds. I personally have a ark grip N-II exhaust.

 

There are very little if any HP gains to be had from any cat back. That said, I have the Hahn and for me it has the perfect balance between being quiet and understated under normal driving yet produces a nice rumble under power.

 

go smoke more crack

 

Mr b what's your choice?

 

the stock muff is the main cork zzp has a great exhaust setups

you all need to use the search button there are 90034556677 threads on this subject go read and educate yourselves

 

oh ive been educated, just wondering what a GDS'er thought.

if i had a dollar for how many times someone said use the search button id have 90,034,556,677

 

^Thats alot of monies

 

**** yeah 90 B. for using the search button. WE FLY HIGH NO LIE YOU NOE DIS

 

i'd go with the search button comment but since it's been beaten in already i'll just leave this....

any exhaust added after the header and DP will be louder than stock, so with that said the best sounding cat back on N/A and SC ecotecs IMHO is the GMPP

 

COMPLETELY incorrect. You want this muffler so your supercharged car doesnt sound like a bag of **** and has at least some back pressure.


You could go straight through muffler than to a ZZP 3 chamber on a 2.5" setup, youll most likely see no difference, if anything more power with the 3 chamber down low in the rpm range, not much though.



LOL ZZP muffler's dont flow well he says.

 

you guys so know that if everyone used the search button this site wouldn't have much to it at all? hahah
anyways I like my megan catback its ricer and loud. WIN

 

Depends what ya want my man id go ebay and buy a tsudo 2 .5 " exhaust should be all youd need

 

Straight pipe FTW. It sounds so good! Such a nice deep perr

 

 

Double post my bad I'm drunk

 

I've got the ZZP 2.5 with no Res and it is loud as crap! I also have a zzp long tube and no cat... but after WA police kept pulling me over I bought the ZZP resonator and it sounds much better!.. zzp was a perfect fit, shipped fast, and just plain old does its job! You can not go wrong with the 2.5in zzp with Res.