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Discussion Starter #1
Hi, I purchased Corsa 2.75" Axle-Back, Dual Rear Exit with Twin 4.0"
I want to conect it with kooks headers , i find two size , i need to know what size will fit to my Corsa
* 1 7/8" x 3" Stainless Steel Long Tube Headers

* 2" x 3" Stainless Steel Long Tube Headers

CTS V 2018
Thanks
 

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2011 CTS-V
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37 Posts
Either will work. Depends on what power level you are looking for. The 1-7/8 isn’t much smaller and isn’t a restriction at the typical power levels most shoot for with these cars.
 

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'05 CTS-V
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7,979 Posts
Your Corsa axle-back installs at the very end of the exhaust system. It doesn't connect to the headers, so which set of Kooks you buy has nothing to do with the Corsa setup.

Is there a reason the title of your thread is "Cat"? :confused:
 
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