DP 4in down pipe clearance
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Freshman User
Joined: Apr 2010
Posts: 42
Likes: 0
From: NW Montana
DP 4in down pipe clearance
I did consider asking in exhaust forum BUT looked like 90% gas engine questions etc. I did some search's and read as many as i could find about diesel aftermarket exhausts and still have a question, we are installing a Diamond Eye 4in cat n muffler elimination exhaust on my sons 2000 ford 350 heavy duty extended cab 7.3L power stroke, my question is how much clearance from firewall is do we need? i have read some needed to "modify" the firewall which i am ok with have saws-all & new blades i also read to not use the included clamps is there anything else we need to be aware of? sorry if i asked in wrong forum
Post Fiend
Joined: Nov 2007
Posts: 9,549
Likes: 14
From: Payson, AZ
I have no experience with modifying firewall for a DP. I installed a Magnaflow and not a Diamond Eye DP.
If u-bolt clamps came with the system they will certainy work but I used Walker band clamps instead of u-bolt clamps, except for the u-bolt with the hanger(rear most in the pic). For the actual connection I did use a band clamp. The u-blt hanger clamp is actually around the bad clamp. Just a matter of personal choice but the band calmps don't crush the connection and makes it easier to later adjust or separate the pipe connections if needed.
If u-bolt clamps came with the system they will certainy work but I used Walker band clamps instead of u-bolt clamps, except for the u-bolt with the hanger(rear most in the pic). For the actual connection I did use a band clamp. The u-blt hanger clamp is actually around the bad clamp. Just a matter of personal choice but the band calmps don't crush the connection and makes it easier to later adjust or separate the pipe connections if needed.
Logistics Pro
Joined: Dec 2010
Posts: 4,738
Likes: 15
From: Temperance, MI
Those clamps are nice. I have a Banks 4'' turbo back I scored off CL awhile back and Ill admit it was a tight fit but it went in and bolted up like it should. What I did was made a heat shield where it was close to the fire wall and called it good almost 2 years and no issues
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Freshman User
Joined: Apr 2010
Posts: 42
Likes: 0
From: NW Montana
Thanks for the info the stock exhaust came out with no problems i was considering a heat shield of some sort, i was just nervous after reading some had to modify the firewall to create enough clearance, we just discovered they sent the wrong kit 2003-2006 so its going back so we have to wait to see how it looks and SOUNDS....
Lead Driver
Joined: Mar 2004
Posts: 5,372
Likes: 108
From: Northern Indiana
My 4" down pipe went in pretty easy just had to bend my tranny dipstick mount, but I am running into a problem with my tranny heat shield rubbing on the exhaust. I am going to have to get serious and really bend it I guess.
9 ECHO 1
Joined: Aug 2009
Posts: 12,467
Likes: 58
From: Missouri
Like I said, by DP went in fine with some finagling. My only problem is at the other end. It rubs on my rear shock..
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More Turbo
Joined: Jan 2006
Posts: 687
Likes: 15
From: Lake Charles, LA
I have a Diamond Eye 5" system with the 4" DP. I did not have to make any modifications for it to fit.
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