Got my exhaust installed today
03-23-2007 | 03:42 PM
#11
Originally Posted by Out1aw
Just an FYI, full mandrel bent cat-back systems only yield 3-4 rwhp at its best... and just a muffler probably 2-3 MAYBE. If you want performance, get a set of LT's and true duals, or an ORY next.
Wha??? I've seen back to back dyno tests run between 15-20 RWHP gain from mufflers/dumps on these SS trucks... Are the 5.3 trucks running extra small piping out of the Y-pipe or something? I knew you guys had a more restrictive exhaust, but that's insane!
I'm with shakes...
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