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 157 Reviews

5 ★

89%

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resonator
exhaust
sound
downpipe
quality
shorty header
Installation
Shipping
tone
Catback

09/05/2021

Dacota W.

United States

Sounds good.

Pretty easy to install. I got a shorty header. Resonator and muffler to go with.

2.5 inch Stainless Cobalt Catback Exhaust

09/03/2021

Greg H.

United States

2.2L Cobalt LS catback exhaust

Just having the 2.5" catback WITH the resonator provides a perfect tone to where you can enjoy yourself when getting on the throttle. No drone in 5th gear when cruising on the highway either. No obnoxious notes whatsoever. Quality is easily a 10/10. The welds are stunning to the eye and would highly recommend. I do not currently have the downpipe + header combo yet so I can't attest to the loudness, but the catback and resonator is perfect for daily driving.