Performance and Accessories 2nd gen only Talk about Dodge/Cummins aftermarket products for second generation trucks here. Can include high-performance mods, or general accessories.

HX40 4" Downpipe, Will It Fit???

Thread Tools
 
Search this Thread
 
Old Jun 7, 2007 | 02:26 PM
  #1  
dodgediesel's Avatar
Thread Starter
Registered User
 
Joined: Mar 2005
Posts: 3,190
Likes: 0
From: Red Deer, Alberta
Question HX40 4" Downpipe, Will It Fit???

I just recieved a 4" downpipe with clamp from NADP and it seems like it will fit too low??? I have a HTT coming and just want to have everything ready when it get's here. The boys at NADP say it's the right one but you never know??? Any thoughts??? I will take a picture in a couple of hours to show what I mean...
Reply
Old Jun 7, 2007 | 02:34 PM
  #2  
BigBlue's Avatar
Banned
 
Joined: Feb 2002
Posts: 0
Likes: 0
It'll fit. You might have to finagle with your exhaust some to fit but it'll fit.
Reply
Old Jun 7, 2007 | 03:08 PM
  #3  
dodgediesel's Avatar
Thread Starter
Registered User
 
Joined: Mar 2005
Posts: 3,190
Likes: 0
From: Red Deer, Alberta
I have 4" MBRP "Cool Duals" if that makes any difference?
Reply
Old Jun 7, 2007 | 03:19 PM
  #4  
BigBlue's Avatar
Banned
 
Joined: Feb 2002
Posts: 0
Likes: 0
It varies from one to another. Some slide right in, other's don't. I'll say this though. Your new down pipe is probably gonna come up short by about 2" so plan on having some flex pipe and some clamps.
Reply
Old Jun 7, 2007 | 04:40 PM
  #6  
BigBlue's Avatar
Banned
 
Joined: Feb 2002
Posts: 0
Likes: 0
Your lucky. Of the 5 I've done none have fit right up with the existing exhaust. They all come up 2" shy.
Reply
Old Jun 7, 2007 | 06:30 PM
  #7  
dodgediesel's Avatar
Thread Starter
Registered User
 
Joined: Mar 2005
Posts: 3,190
Likes: 0
From: Red Deer, Alberta
Here's the pic's. This is a HX40 downpipe from Industrial Injection.
Reply
Old Jun 7, 2007 | 06:45 PM
  #8  
BigBlue's Avatar
Banned
 
Joined: Feb 2002
Posts: 0
Likes: 0
I've messed with one from piers, industrial, and HTT. All came up about 2" short.
Reply
Old Jun 7, 2007 | 06:49 PM
  #9  
JLand's Avatar
Registered User
 
Joined: May 2005
Posts: 190
Likes: 0
From: Rogers, Arkansas
I've never heard anyone else say their's was shy like Blue's. I thought mine was the only one. It was exactly 2 inches shy! Switched from Rip Rook's 4" off my HX-35 to the HX-40 downpipe when I went to the HTB2.
I didn't expect anything because no one had ever mentioned it. Rip sent me the new one also. I cut a 6" piece of left over pipe from the original 4" install longways and "expanded" it and clamped it on over the two ends that would not meet. Left a big hole at the bottom for about 5 months until finally got a shop to expand some other left over 4" pipe and splice it the right way.

Your pipe looks just like mine, might want to have some extra expanded to make the fit.

To all turbo and exhaust suppliers, make it the right length.
Reply
Old Jun 7, 2007 | 10:56 PM
  #11  
Lil Dog's Avatar
Chapter President
 
Joined: Feb 2002
Posts: 6,102
Likes: 2
From: Red Deer, Alberta Canada
With the MBRP system, I had to go and get about 16" of pipe to fit in for where the downpipe came in and where the next leg of pipe started. I lost the hanger that goes on the tranny as its welded to the MBRP downpipe.

It does hang low and you just have to make it fit with clamps etc. I found enough flex in the pipes to get it to line up reasonably well. I used stainless band clamps on my pipe from front to back, so it wasn't crunched by the cheapy threaded rod clamps. Easy to adjust and I knew I was gonna put a different down pipe in one day..
Reply
Old Jun 7, 2007 | 11:20 PM
  #12  
dodgediesel's Avatar
Thread Starter
Registered User
 
Joined: Mar 2005
Posts: 3,190
Likes: 0
From: Red Deer, Alberta
It couldn't just be like a 3rd gen, easy fit!!! I'm wondering if I should go and get a seperate 16" long, flared one end piece just incase??
Reply
Old Jun 7, 2007 | 11:24 PM
  #13  
BCSCUMMINS's Avatar
Banned
 
Joined: Apr 2006
Posts: 380
Likes: 0
From: Type, Tx, POP: 40
Mine as well got the down pipe from htt and it didn’t line up with my exhaust.
Reply
Old Jun 7, 2007 | 11:29 PM
  #14  
dodgediesel's Avatar
Thread Starter
Registered User
 
Joined: Mar 2005
Posts: 3,190
Likes: 0
From: Red Deer, Alberta
I wonder if I should just cut a bunch extra out of the old down pipe just incase? It still seems like this pipe will hang low or am I crazy??? What's the difference between the rear exhaust side of an HTT 62/13 SS and a HX35?
Reply
Old Jun 7, 2007 | 11:34 PM
  #15  
BCSCUMMINS's Avatar
Banned
 
Joined: Apr 2006
Posts: 380
Likes: 0
From: Type, Tx, POP: 40
Mine was not only to short, but in was too high. Had to cut my exhaust back about 1ft and put in some flex pipe.
Reply



All times are GMT -5. The time now is 07:57 AM.