i bet if you put some cats in the off road-y it would take away alot of the raspiness...
Yea originally I had cats for the setup but after I got the setup bolted up the cats were too long with the ball and socket style collectors I had installed on the long tubes.So I had to ditch the cats in order to get y-pipe to fit.
07 ECSB 5.3 , Corsa Sport Exhaust , Magnaflow Catted Y-pipe, SLP Cold Air Intake , Corvette Servo, Tinted taillights , HP tuners Debadged