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Re: 3 inch exhaust too much?
Quote:
Originally Posted by swb85
Biggest.....myth.....EVER! Back pressure is a bad thing, and you never want it in your exhaust. I do agree that 2.5" is plenty for the motor in question, but you wouldn't lose any power with 3".....just be a little noisier.
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Agree 100% backpressure only hurts you, it doesn't help.
2.5" is plenty for that combo, but 3" would be bada$$. It did on my 355. Flowmaster sells a universal exhaust kit that works well on our trucks. That is what I made mine with. I am actually selling mine and you can see pictures in the classified section.
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83 C10 Stepside (SOLD, it was a blast!)
383 MASS-FLO EFI/TKO II 600/3.90 Posi 10 bolt
S475 and C4 DM running, fine tuning
turbo= 
Douchebag Racing: Runs Fine all the Time
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