2.5 inch Stainless Cobalt Catback Exhaust

Stainless steel
Mandrel bent
Optional Resonator
Polished 3 Chamber muffler
1/2" Hangers in all OEM locations
Includes all required clamps and gasket
Direct bolt in when used with a stock exit downpipe

During the testing phase we setup an RTA to measure db levels at various frequencies and rpm ranges . Time consuming to say the least but in the end we came up with a solution which we now manufacture in stainless. This is an amazing sounding exhaust while still maintaining a quiet tone when it is ordered with the resonator as a stock replacement. Running this 2.5" catback with a catted downpipe, and resonator option can be quieter than stock and flow restriction free until around 260whp which is the average power for a Stage 3 kit with dual pass endplate, header/downpipe, & CAI. If your goal is to make more than 260whp you will want to upgrade to the 3" catback instead, but that will require cams/valve springs and more to exceed 270whp.

Fits the 2005-07 2.0, 2005+ 2.2 & 2.4 liter Cobalts.

*UPS shipping only

Sound Clip with ZZP Cat'd Downpipe, with resonator

Sound Clip with ZZP Cat'd Downpipe, without resonator

Customer Reviews

4.9 Based on 141 Reviews

5 ★

88%

124

4 ★

3 ★

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02/22/2021

Carl W.

United States

Good exhuast

Just installed this and it went together great. It has a good mellow tone. If you are looking for loud leave out the resonator order replacement pipe I think it is just a little to quiet other than that great kit

2.5 inch Stainless Cobalt Catback Exhaust

01/18/2021

Jonathan S.

United States

2.5 in stainless exhaust

I spent all this money an installed it correctly just for all the exhaust clamps to leak.

2.5 inch Stainless Cobalt Catback Exhaust

12/16/2020

Lawrence Z.

United States

2.5" exhaust on a 2.4 litre N/A G5 GT

The install was SUPER simple. I'm not a novice when it comes to working on my own cars and I've replaced several exhaust systems. By far, this was the easiest one I have ever installed. I replaced the entire exhaust (D/P to tip and also got the resonator). The exhaust sounds pretty good outside of the car, but inside it gets really loud at WOT. This seems to be coming from the resonator and echo's through the interior of the car. I'm probably going to have to line the exhaust **** & back seat area with some sound deadner.