2.5" or 3"?

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Jul 17, 2008 | 09:34 PM

fbirdserge00

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From: Los Angeles, CA

2.5" or 3"?

JUst wondering what diameter might be better for my set up. Running Hedman hedders LTs to 2 slp loudmouths with a X pipe still havent decided to dump them or run it all the way back?? AND 2.5" or 3"?? NE Difference?

Jul 17, 2008 | 09:37 PM

krazy4

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From: Yorba Linda, CA

Just run 3" and have room to grow for later.

Jul 18, 2008 | 08:42 AM

Engine_HP

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From: Middle East.

3" i have it on my m6 99 f-body it`s great.
good luck.

Jul 18, 2008 | 10:34 AM

LTLRDSS

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From: venice/sarasota fl

i run 2.5 inch tds with no problems

Jul 18, 2008 | 11:24 AM

Kingc8r

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From: SF Bay Area

2.5 is probably better at your power level. A lot of kits are 3 inch though....or so I think

Jul 18, 2008 | 11:42 AM

jmm98LS1

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From: KS

Good 2.5" duals will support upwards of 500hp at the flywheel. Get much above that and they become a restriction.

Jul 19, 2008 | 12:27 AM

bsf

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From: MI

Quote:

Originally Posted by jmm98LS1

Good 2.5" duals will support upwards of 500hp at the flywheel. Get much above that and they become a restriction.

Based on articles by Vizard, I agree, but do not know whether it is ~500 flywheel or rear wheel HP. Even after that, I am not certain how much power it would hold back. We are talking about mandrel bent 2.5”, not some mutilated, crush-bent systems.

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