4 inch down pipe

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Nov 2, 2005 | 08:45 PM

rjdpowerstroke

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4 inch down pipe

ok guys i went with the 4 inch down pipe and its rubbing and shaking everything inside the cab. do i have to take it off and cut the spot off were its hitting or can i try to weld it to the spot were its touching to make the viberating go away any one else have any ideas how to fix this problem thanks for any help

Nov 2, 2005 | 08:57 PM

TX_F250

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From: Little Elm, Tx

hmm i have an 05 6.0 with a 4" exhaust and mine doesn't touch, what year and what kind of downpipe?

Nov 2, 2005 | 09:00 PM

rjdpowerstroke

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Quote:

Originally Posted by TX_F250

hmm i have an 05 6.0 with a 4" exhaust and mine doesn't touch, what year and what kind of downpipe?

its a staight pipe fix off ebay it came with a mega flow muffler and i still am debating if i want the muffler on or off it was a nice kit bolted in in a hour and it was only 320 bucks with a 15 inch tip

Nov 2, 2005 | 09:01 PM

rjdpowerstroke

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Quote:

Originally Posted by TX_F250

hmm i have an 05 6.0 with a 4" exhaust and mine doesn't touch, what year and what kind of downpipe?

oh yeah lol its a 2004 f350 supercab short bed

Nov 3, 2005 | 07:42 AM

shiftkx

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From: california

Quote:

Originally Posted by rjdpowerstroke

dam dude you coulda got a complete kit from www.DIESELPERFORMANCEPARTS.COM for the same price .

Nov 3, 2005 | 02:16 PM

Dieselmanor

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First off, shame on you for not purchasing from a reputable dealer and sponsor on FTE. You could have saved your self some $$ and grief by purchasing a quality system from one of the many sponsors here, and if you had a problem later, although doubtful, they would be more than willing to help you out. I can't say the same for a Joe-Shmo on an internet auction site. Who knows where that system/parts came from. The MBRP Brand that we sell only come with a 3.5" DP for the 6.0Ls. That's because when they were developing the system back in early 2003 they found that about 15% of the 4" Down Pipes had clearance issues. They found that they didn't have these problems with the 3.5" DP and it even gets a little better performance than the 4".

Do not weld the exhaust to any part of the truck. Doing so will only increase the noise not to mention a host of other problems that you will encounter. Everything on the exhaust should be free with no contact anywhere except for the rubber hangers.

Nov 6, 2005 | 03:55 PM

DS3

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Hog Performance Exhaust makes a all 4" system, and they have a video for install where you have to push out the firewall in a certain spot to clear the 4" downpipe.

www.hogperformance.com

You can check and see if it helps.

Derek