exhaust diameter - Off-Road Forums & Discussion Groups
Jeep-Short Wheelbase All discussion of short wheelbase Jeeps: CJ, TJ, YJ and JK

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post #1 of (permalink) Old 10-08-1999, 02:11 AM
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exhaust diameter

yj, 4.2L, 390 cfm, clifford headers, no cat

What diameter for the exhaust and a muffler recommendation.

Thank you.

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post #2 of (permalink) Old 10-08-1999, 08:58 AM
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Re: exhaust diameter

I'd say a 2.5 inch pipe would flow more than enough for that.

post #3 of (permalink) Old 10-08-1999, 09:56 AM
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Re: exhaust diameter

If you go any bigger than that you are going to start affecting your bottom end.

Brad (from the 4 Wheeling center of the universe, 4 corners USA)
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