DD 4" Exhaust Install

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For anyone thinking of purchasing and installing a 4" exhaust, this information may be helpful.

I just installed a DD exhaust system. While they supply clamps for all joints, I would recomend welding all connections with the exception of the downpipe and first extension connection. At a minimum, the tailpipe and over the axle pipe should be welded. A cutoff saw is also very helpful.

I am happy with the system overall but was disappointed with the low exit height of the tailpipe. I made my own hanger and shortened the pipe theat runs over the axle by 1 3/4" to get the pipe tucked up closer. I think the results look much better. If you have the tools, the installation is painless #ad


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'99 Sport 3500 Quad Cab 4X4 /A. T/3. 54 Red w/Downey Cover, Ultra Boards, K& N Filter, DD Stage I Injectors, 4" Exhaust, Pyro/Boost/ Trans Temp.

Towee: '00 American Star 10,000# 5th wheel.

If it ain't a Diesel (Cummins), it ain't a real truck!

 

[Archive]

So, how does it sound? Did you put in a muffler or just 4" straight?

Mike

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'00 3500 QC, 6x6, auto, 3. 54LS, Isspro gauges, TST injectors, 4 wire Blue Box, 3" Walker muffler, BD low stall TC, valve body, PressureLoc.

 

[Archive]

Glad to see ya finally got to post. Hows your wife's truck? #ad


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• Eric D. Howard - #ad
  - BOMB'er! - #ad
  - Member since April 8th, 2000
• 2001 Dodge Ram 2500 HD 4x4 SLT Auto Reg cab Cummins Turbo Diesel 4. 10 gear ratio LT265/75R/16 tires
• Patriot Blue Pearl Coat, Agate interior, Leather seats EVERY option - Coming next week Rhino bedliner
• In the VERY near future Power Edge Box(here),PowerEdge "other" product when available,DD Stage III(A)'s (probably August), JRE 4" Exhaust(coming in July), and Autometer Ultra-Lite Boost and Pyro Gauges(here)
• transmission soon to have a new Torque Converter and Valvebody good for 400HP!?!(coming mid July)

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[This message has been edited by KatDiesel (edited 06-09-2000). ]

 

[Archive]

I installed the DD supplied muffler with the system. The sound from the tailpipe is more pronounced at idle but cab volume hasn't changed much, gone down if anything. I just got back from a camping trip, the first after my upgrades. The exhaust sounds great under a load (10000 lb. 5th Wheel, you should have seen the Powerjokes look at the campground when we pulled in. The hill just before the entrance allowed me to "announce my arrival". Sounds even better with the silencer ring removed! I did test the system with a straight pipe before installing the muffler, wife said it was too obnoxious. If it hadn't of been for the $ 1,400. 00 of recent improvements, I would have fought harder.

So, Kat, when are we going to get the trucks together with some other locals?

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'99 Sport 3500 Quad Cab 4X4 /A. T/3. 54 Red w/Downey Cover, Ultra Boards, K& N Filter, DD Stage I Injectors, 4" Exhaust, Pyro/Boost/ Trans Temp.

Towee: '00 American Star 10,000# 5th wheel.

If it ain't a Diesel (Cummins), it ain't a real truck!