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Old 04-05-2017, 01:10 PM   #5
exxit
 
Drives: 2016 1SS D1SC Methfed Lowered Wrapd
Join Date: Apr 2016
Location: CA
Posts: 632
when I had straight pipes to NPP, it sounded like nascar at high rpms, but like raspcar at low (just nasty rattle rasp). The baffles closed sounded like absolute crap as well.

When i tossed the procharger on, my exhaust note definitely evolved, but by that time I had put my secondary cats back on. I'd like to add that I live in nazifornia... where all it takes is a cop having a bad day to turn a routine traffic stop into a state ref ordeal.
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