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2.5" or 3" for a TT

You wont have trouble making 500 RWHP with a 2.5" exhaust. A good free flowing 2.5" exhaust with HFCs will flow up to 550 RWHP. A 3" exhaust is unecessary

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Old 12-10-2009, 08:44 AM   #1 (permalink)
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You wont have trouble making 500 RWHP with a 2.5" exhaust. A good free flowing 2.5" exhaust with HFCs will flow up to 550 RWHP. A 3" exhaust is unecessary unless you after the really big gains of 600RWHP and beyond.
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Old 12-10-2009, 08:48 AM   #2 (permalink)
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Originally Posted by 2fast4thelaw View Post
You wont have trouble making 500 RWHP with a 2.5" exhaust. A good free flowing 2.5" exhaust with HFCs will flow up to 550 RWHP.


Where'd you get this data from? Yeah you probably could but you'd need to pushing like 15 psi with a stage 3 kit
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