6.4L Power Stroke Diesel Engine fitted to 2008 - 2010 F250, F350 and F450 pickup trucks and F350 + Cab Chassis

4" Downpipe Rubs Firewall

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Old

Dec 15, 2017 | 03:44 PM

#1

StrangeBrew69

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Freshman User

Joined: Dec 2017

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4" Downpipe Rubs Firewall

Hi, does anyone else have an issue with a 4" downpipe rubbing on the firewall? If so how did you go about fixing the issue? It is rather annoying. Thanks

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Old

Dec 16, 2017 | 03:35 AM

#2

Copper.Farm

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Joined: Dec 2016

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From: Bozeman MT

Your best option is to contact the manufacturer of the down pipe.

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Old

Dec 16, 2017 | 02:06 PM

#3

Firefighter 1406

Lead Driver

Joined: Mar 2004

Posts: 5,372

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From: Northern Indiana

Club FTE Silver Member

I Know on my 7.3 I had to take a long prybar and “Bend” the pipe after installed to keep it from rubbing. The downpipes are tight fits for sure.

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Old

Dec 16, 2017 | 10:21 PM

#4

Martin6

Tuned

Joined: Nov 2017

Posts: 264

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From: Bend, Oregon

I didn't have that issue with mine. Who's downpipe are you using?

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Old

Dec 16, 2017 | 11:40 PM

#5

StrangeBrew69

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I am using and MBRP 4 " downpipe to a 5" exhaust.

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