Downpipe Installation Pics
Elder User
Joined: Aug 2009
Posts: 869
Likes: 1
From: Michigan
Nah I didnt have to mess with it. only had to make the one cut at the top. funny thing is i made the one cut up top and couldnt get it out. so i was on it down below with the sawzall and the blade hung up as i was making a second cut and the dp started shaking back n forth and the thing nearly fell out on my head and about knocked me out cold. mines in and went pretty easy. the pinch weld mod was simple. so its inhaling and exhaling alot easier now. spools right up.
Cargo Master
Joined: Nov 2006
Posts: 2,171
Likes: 20
From: Denton, TX
On the new uppipe and the firewall or the pinch seam that seems to be causing people to have to bend it out of the way?
Senior User
Joined: Jun 2011
Posts: 182
Likes: 0
I only read one thread mentioning header wrap. I was thinking that it would be a good idea and planned on doing it before I put mine in. Is everybody else doing this and not mentioning it, or not bothering with it. Any opinions?
-Joseph
-Joseph
Hotshot
Joined: Jan 2012
Posts: 11,132
Likes: 3
From: Southern West Virginia
I thought about it, but I don't know if I will or not. The only reason I was gonna do it was for noise insulation. The DP seems to increase the in-cab noise a little, but it's not too bad.
Post Fiend
Joined: Dec 2009
Posts: 15,505
Likes: 18
From: Livoina,La
I have a 1/4" gap on both sides of the new DP
Senior User
Joined: Jun 2011
Posts: 182
Likes: 0
I was thinking to prevent undue heat by the transmission and even the cab of the truck.
-Joseph
-Joseph
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Senior User
Joined: Mar 2015
Posts: 326
Likes: 0
From: North Carolina-Foothills
To the OP..Nice job..GREAT PICS!
Last edited by tasilium; Nov 7, 2015 at 03:50 AM. Reason: wording
Senior User
Joined: Mar 2015
Posts: 304
Likes: 12
From: WA
Well, I finally got around to getting the DP and 4" exhaust on the old dually today. What a difference! It did take me most of the day, and a few sawzall blades but defnitely not the worst project I've done by far. I ended up making 4 or 5 cuts in the pinch weld with the sawzall and removing a small piece of the heat shield (so I could access the pinch weld) which I re-secured with a self tapping sheet metal screw. Removing the old "cobra head" was the worst part for me, I ended up cutting it into 3 pieces. This may be in part to the exhaust brake I have installed on the back of my turbe, it has a vacuum operated cylinder that is mounted to the turbo and I left it all in place so accessing that area was a little tough.
Thank you to everyone who has contributed to this thread, it helped me a ton!
Thank you to everyone who has contributed to this thread, it helped me a ton!
Senior User
Joined: Aug 2015
Posts: 282
Likes: 0
From: North Little Rock
My wife keeps asking me why I need new tools, because she sees the tools I already have in my roll-away.
I tell her I need new "diesel" tools. The ones I have in the roll-away are for gas engines. She
and nods her head knowingly; then goes to the store for new clothes.
I tell her I need new "diesel" tools. The ones I have in the roll-away are for gas engines. She
and nods her head knowingly; then goes to the store for new clothes.
Cargo Master
Joined: Nov 2006
Posts: 2,171
Likes: 20
From: Denton, TX
Regarding the comments about justifying additional tools and even so-called "modifications" to the Wife...none of these are optional. They are necessary corrections of engineering errors. It is unfortunate that some of our trucks need more correction than others...
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