exhaust cut outs
#3
RE: exhaust cut outs
on the newer engines "4.8 5.3 6.0" You need a certain amount of backpressure to run right. Smoke put true duals with a crossover on his pickup and had to add restrictors later because it didnt have enough backpressure, and i would think this thing would have the same prob, unless of course he is doin it just to uncap em in town and give people a show, and not for any performance related activity whatsoever
#6
RE: exhaust cut outs
The idea is when your racing it, once it is up to highway speed backpressure doesn't matter. You leave them closed when launching and at about 45-50 I'd say, you open er' up which makes for more breathing which makes for more top end power!
#8
RE: exhaust cut outs
depends on what you call "impressive"... i know a guy that used to drive a z71 with what he called "true duals"... he had two completely separate pipes with no cats or mufflers... no x-pipe, no h-pipe, nothing... made lots of racket but sounded like straight poop... but the noise level was impressive, i guess