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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
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    Filter Reviews:
    Carl W.
    United States 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

    Jonathan S.
    United States United States
    2.5 in stainless exhaust

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

    Lawrence Z.
    United States 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.

    ZZPerformance 2.5 inch Stainless Cobalt Catback Exhaust ReviewZZPerformance 2.5 inch Stainless Cobalt Catback Exhaust ReviewZZPerformance 2.5 inch Stainless Cobalt Catback Exhaust ReviewZZPerformance 2.5 inch Stainless Cobalt Catback Exhaust Review
    Louis C.
    United States United States

    Roland c.
    United States United States
    Wow !!

    I love the sound of the new exhaust !! Easy to install.