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Apr 4, 2006 | 06:12 PM

Cummins Freak

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From: Williston, ND

need help fast please

guys how bid it the O.D. of our factory exhausts on my 97 cummins 3" or 3.5"

Apr 4, 2006 | 06:20 PM

Diesel-Dan

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From: Plano, TX

3" untill the tail pipe which for a short section 4"

Apr 4, 2006 | 06:32 PM

Cummins Freak

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From: Williston, ND

thanks im on the wayto the truck shop for parts pricing and needed to know that

Apr 4, 2006 | 07:02 PM

Cummins Freak

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From: Williston, ND

i take it thats O.D. right

Apr 4, 2006 | 07:29 PM

Diesel-Dan

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From: Plano, TX

I want to say ID...but not 100%. I would bet on it though.......

Apr 4, 2006 | 08:13 PM

BigBlue

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I thought it was 3" OD.

Apr 4, 2006 | 08:21 PM

Diesel-Dan

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From: Plano, TX

When i got my Stright pipe done.....they flared the 3" exhaust pipe they used....this makes me think that its 3" I.D.

need help fast please

need help fast please

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