i am planning on doing the zzp stage 3 s/c kit on my ss s/c. i am gonna get a bad-mab header with a3inch zzp dp. i was wondering what would be the best catback setup for this i would like the best sound/performance.

 

cant go wrong with Magnaflow man.

 

kinda wanna keep away from 750 dollar exhaust

 

Hahn all the way for the sound.

 

then your not gonna get a catback. lol just go with hahn then. they sound pretty beastly.

 

Weld in a 2.5 resonator (or glasspack) in place of the OEM resonator (only has a 2 1/16" inlet/outlet) and order an over the axle pipe with the magnaflow muffler from CTI. You'll have less than $300 in it and have a full 2.5" cat-back.

 

05-10 CHEVY COBALT EXHAUST - BOLT ON - (304 STAINLESS - 2.5 IN)
I have their tubing kit good company

 

If you keep the cat, you may be able to have a decent sounding exhaust, keep that in mind. Ive yet to hear anyone without a cat not sound raspy...

someone please prove me wrong!

 

The inlet is 2 1/16", but the outlet is 2.5". Not that it matter though, because it is still restrictive.

 

Your best choice is to either go through mandrelexhaustsystems or go to an exhaust shop. Any exhaust shop will be able to easily look at your system and create you a 3inch exhaust. Just make sure they have a mandrel bending machine, if not just walk out and find another one or call around. This will save you A LOT of money and you can watch them do it .

As for the muffler use a dynomax super turbo, the big one 27 inch's long and your car will be SUPER quiet and sound VERY aggressive!

Erick161 - I have no rasp, I can hear the tvs scream after 4k rpms, and shes dead quiet at idle to 3500 give or take. There is just a really low deep rumble while cruising at 70 at 3k rpms.

 

Ah, thanks for the correction.

 

He's pretty **** about the information that floats around here haha . But in all honesty, any shop will save you a shitload of money. I can get amazing 3inch systems for 300 bucks out here cough and shipping is only 70 bucks if you are interested =P

 

im running a zzp longtube header catless to a 2.5" exhaust with a big magnaflow resonator, and a magnaflow muffler.. sounds great. no rasp. I got the cat back, in stainless, mandrel bent from a local shop with resonator and muffler, v-banded for like $250 installed and everything.

 

Wow, what are the odds.. I found someone with the EXACT same full exhaust setup as me..

 

Haha.

I just like keeping things accurate is all

I'm an engineer.... It's in my blood.

 

Thanks to that super turbo I imagine! That's good to hear. Are you catless as well?

 

Erick161 - I am catless on a full 3inch system and it really sounds amazing. It's pretty fresh on the car right now but even after it "burns in" it will still sound great!

 

Nice, any clips? Impressive, catless and 3in...and no rasp.

 

I know man I have tried SO many setups, you literally have no idea! I don't have any clips at this time but give me some time and I will get a few for you guys! It is the best thing I have ever heard and I have heard A LOT of cobalts and have had over 10 mufflers on 5 different catbacks lol.

 

You wouldn't happen to have a link would you? I googled it and found various ones, thanks!

is this it? http://www.summitracing.com/parts/WLK-17788/

 

I didnt know they made round super turbo muffler... Id probably stick with oval myself. I've run them before and they sound great.

 

Out of curiosity, why is that? ^

 

this must be it but seems expensive Dynomax Performance 17156 - Dynomax VT Mufflers - Overview - SummitRacing.com

overall is a 2.5 Cat back better than just replacing the resonator and muffler?

 

If it can quite down a catless setup, I would say its worth the 100 bucks, you know?

****edit that cant be it, he said its over length was 27in, that one is only 14in.

 

Don't go with a VT muffler, go with a dyno max super turbo regular square muffler. Something like these.

2.500 in. - 2.500 in. - Mufflers - SummitRacing.com

Those are 2.5 inch, you can search for 3 inch also. They should be 27 inches long.