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 (LSJ), 2005-2010 2.2 & 2.4L Cobalt's; also fits 07-10 Pontiac G5.

*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 164 Reviews

5 ★

89%

146

4 ★

3 ★

2 ★

1 ★

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resonator
exhaust
sound
downpipe
quality
shorty header
Installation
Shipping
tone
Catback

01/14/2022

Jon R.

United States

Performance parts as the name states!

Our local mechanic spaced out the exhaust header and pipes for my son’s cobalt ss and he did not steer us wrong. The car performs so much better and the parts quality is very good!

2.5 inch Stainless Cobalt Catback Exhaust

01/14/2022

Robert B.

United States

Best Bang for the Buck

Excellent fit and workmanship. The sound is throaty, without being overly loud. Virtually no drone ! I highly recommend

2.5 inch Stainless Cobalt Catback Exhaust

12/05/2021

Phillip H.

United States

So quiet

Big difference from my old stock exhaust. Super easy to install... with a friend. But still super easy, and sexy.

2.5 inch Stainless Cobalt Catback Exhaust

11/09/2021

Mike c.

United States

Very happy

I will only be buying parts that are sold by zzp whenever I can. Love the sound, as this is my first time having a non oem exhaust I had so many questions all have been answered quickly and to my satisfaction. Non resonator with muffler, I also got new hangers which I am very glad to have done as the oem had been getting rotten and difficult to remove. I was also very surprised at the size of the tailpipe at 4" its impressive.