1994.5 - 1997 7.3L Power Stroke Diesel

6637 and 3'' down pipe

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Dec 8, 2009 | 12:32 AM

#1

Slimsadie

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6637 and 3'' down pipe

Well I finally got off my butt and Installed the 6637 kit and the 3'' down pipe from Riff Raff and all I have to say is wow. My truck has much more power and is much more responsive than before. I can't believe I waited so long to do these mods. If you have not done these yet do not wait any longer

Slim

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Dec 8, 2009 | 05:25 AM

#2

Brown Falcon

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Joined: Jul 2008

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From: Thomasville, GA

Good to hear! Mine already had the 6637 when I bought it, but the downpipe really seemed to help when I installed it.

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Dec 8, 2009 | 06:10 AM

#3

yoslick

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Joined: Aug 2005

Posts: 507

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From: NW Wisc

+1 good stuff for sure!!

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