I bet it’s fast!I just did my 14 Denali with a Supercharger and Kooks 1 7/8 headers, green cats,
Y pipe.. I figured I'd get it all hooked up and dialed in, then do some sort of
exhaust from the kooks back.. But really I knew I wouldn't gain much HP
from an aftermarket exhaust, but I figured I'd def want more sound.
Well, I am going to do Nothing... The stock exhaust is quit a bit louder
than it used to be with stock manifolds/Y/ Cats
And I still have the weird little resonator at the very rear. I'm pretty happy
with the sound right now. I really didn't think it would change, but it did !!
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