Quote:
Originally Posted by Z OH 6
Not that much honestly, high flow cats are still quite loud.
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Taking the cats off my car it’s unbearably loud. Loud as you cannot even hold a conversation inside the cabin. There is a dramatic difference in decibels from no cats to the gen 2 ultra cats. They are 400 cell cats and are much quieter with them on.
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928rwhp - 93 | 1040rwhp/898rwrq - E65 SAE
LME 377 LT4 Short Block | Magnuson 2650 80mm upper w/13% lower (9.06) | DSX Lid & Valve Covers | CSP Custom Cam w/32% fuel lobe | CID Heads | NW 103mm TB | Roto Fab Big Gulp | CSP 2" Headers w/Green GESI Gen 2 Cats | Borla 3" Full Cat Back w/ S-Type| Mighty Mouse Wild Catch Can| Custom Holley Low side Fuel system| TooHigh PSI Port Injection w/Holley Controller | Forced Inductions Interchiller w/2 gallon fender tank | TK Performance built 10L90