Kooks with Cats or ORY?
#1
Kooks with Cats or ORY?
I'm placing an order for a set of Kooks 1 7/8" headers and y-pipe for my 2011 Sierra 6.2L but I can't make up my mind between cats or not. Pros Cons? Is there a sound difference? I don't want the rasp! I'll probably stay with the factory 6.2 exhaust unless another catback will have better sound and performance.
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