Thread: 2.75" vs 3" pipe on supercharged vehicles.
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Old 07-29-2013, 10:24 AM   #23 (permalink)
esfourteen
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just for reference: I run a stage 2 with internal gates, 2.5" test pipes, 2.5" catback. I made 575hp/540tq (dynojet) @ 15psi. top end falls off just a bit at around 7k, but so does boost, so I would not say a dual 3" is necessary at all.
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