Cutouts, headers and backpressure- what's the scoop?
#21
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IMO, cutouts are like fuzzy dice, my own preference in an S/C app would be some 1-3/4 LTs, high flow cats connected to a 3 to 3.5 inch exhaust system feeding a good X or H pipe and some bullet mufflers all mandrel bent. Easily a 500hp exhaust system (if a bit loud).
#22
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I'm not so worried about the power it makes. I think its cool that you can have a switch that you can take our the muffs and h-pipes and go straight off of the manifolds/LT's
#24
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Depends I guess, but if I was going for a set of cutouts, I'd go after the H-pipe, there is some benefit to keeping the cross-over active in the system (I can attest to this when we installed an X-pipe on a project car of my brother's, it made a very noticable difference in the power of the engine), before that and you end up with two 4 bangers coupled to the same crankshaft in terms of noise (power pulses produced in the exhaust - the more the better - part of the reason those fart can exhausts sound so annoying another good example are the first vipers with the side exit exhaust and no cross-over). The resonant (rarefaction waves) tuning also changes considerably when you change the length of the exhuast system (much like changing the runner length on an intake).
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#28
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So are these welded on to the end of the header or into the H-pipe before the cats? Would they have to cut a hole in the h-pipe if they welded them together?
#29
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Depends I guess, but if I was going for a set of cutouts, I'd go after the H-pipe, there is some benefit to keeping the cross-over active in the system (I can attest to this when we installed an X-pipe on a project car of my brother's, it made a very noticable difference in the power of the engine), before that and you end up with two 4 bangers coupled to the same crankshaft in terms of noise (power pulses produced in the exhaust - the more the better - part of the reason those fart can exhausts sound so annoying another good example are the first vipers with the side exit exhaust and no cross-over). The resonant (rarefaction waves) tuning also changes considerably when you change the length of the exhuast system (much like changing the runner length on an intake).
My buddy went right off of the stock manifolds, no cut outs. He just bought 2 L pipes and clamped them on to his 97 GT. It sounds mean!
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