Looking for opinions on DD 4" exhaust system please

[TomGolden]

I didn't realize that Diesel Dynamics also offers a 4" exhaust system until reading another post here today. I was all set to order either the JRE or Jardine systems next week, but thought I'd ask you all for your opions. In the other post I mention, someone said they liked the DD's sound better than his previous JRE 4" exhaust. I will soon have DD Stage 3 injectors and their True Torque Power Module also #ad
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Thanks,
Tom


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Get outta the way: The Cummins is Cummin'!

Tom Golden
Godzilla: Patriot Blue 2001 2500 SLT QC 4X4 LWB ETH/DEE, Tow & Camper packages, 3. 54 Ltd. Slip, 4 wheel disc ABS, Isspro EGT/boost gauges, black SmittyBilt nerf bars, K&N RE-0880 & pre-filter, no silencer ring, TDR decal, Jack holiday antenna ball
2001 Zinc Yellow SVT Mustang Cobra on order
NRA Life/CRPA/El Dorado #26 F. &A. M. of California

 

[DennyDay]

Had a 4" JRE installed at Jannetty in October, now have about 20k miles on system with no problems. (rattles, clunks or bangs)
Would go same route if I had to do it again. Good luck, what ever choice you make, you'll be hapy with the 4".

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Denny
'99 2500 4X4 White short Q cab to much added to put here

 

[Joseph Donnelly]

DD has spent a lot of time optimizing pipe configurations and muffler placement to minimize "droning" and annoying harmonics during highway cruising.

 

[Blkdawdg]

I have this exhaust and I can tell you that it is a great system and I would recommend it highly. It was really easy to install and it sounds great. Of course it sounds even better now that the muffler has gone missing.

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2001 ETH SWB Black Sport, Blue Box, HX-40, 4" Exhaust, DD III's, RE-0880, ATS Manifold, Muth Signal Mirrors (way cool!) Too MUCH Stereo, Clifford Avant-Guard 4 w/ Remote Start, 2" leveling kit, Grizzly Nerf Bars, Pathfinder 315's, Ram Grill Guard, BLACK magic hellas, Dual firesticks, and one loud, annoying PA

 

[RobG]

I'll be ordering the DD exhaust system hopefully this week. I decided on it over the Jardine because of the better muffler and anti-droning qualities. Plus, the price with the TDR discount makes it only slightly more expensive than the Jardine on the GP page.

Rob


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2001. 5 RAM 3500 QC 4x4 ETH/DEE Silver/Agate 4. 10 USGear OD, Rickson 19. 5 Wheels, Edge EZ, SPA Guages, Firestone Airbags, Hellwig Rear Swaybar, Torklift Superhitch & Camper Tiedowns, much more.

 

[tobaccogrower]

ONE MONTH AGO I INSTALLED THE JENETTY 4IN. TURBO BACK EXHAUST. IT SOUNDS ALOT BETTER THAN STOCK,BUT ISNT TOO ANNOYING AT HIGHWAY SPEEDS. AFTER THE 3 HOUR INSTALL, I DON'T MIND TAKING MY GIRLFRIEND ON THOSE LONG TRIPS!!!

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1999 RED LOADED 3500 QC DUALLY. CAP,331N. DUNLOPS,ALPINE AUDIO,PSYCHOTTY AIR WITH K&N,BANKS POWERPACK,AND JENETTY 4IN. EXHAUST... . STAND BACK!!!

 

[High Voltage]

I also have the dd system,was very easy to install, great sound,not to bad at freeway speed(65/75)but it get's better at 85+ #ad
#ad


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01,2500,2wd,Auto,3. 54,Med Bronze,Tan Leather,All Options,Mag-Hytec Diff cover,DD4",Westach combo, Line-X(BOMBED)Soooonnn

 

[TomGolden]

I sent an email to DD asking if they sell their 4" exhaust without the muffler, as I really think I'd prefer straight piped (I love hearing my Cummins working hard #ad
), and Keith from DD replied and said "we've never installed our 4" exhsust as a straight system, but I guess it could be done. You should have enough straight pipe to make it exit at the stock location. "

Does anyone know if indeed their kit comes with enough 4" pipe to be able to make it exit at the factory location without the muffler?

Thanks,
Tom

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Get outta the way: The Cummins is Cummin'!

Tom Golden
Godzilla: Patriot Blue 2001 2500 SLT QC 4X4 LWB ETH/DEE, Tow & Camper packages, 3. 54 Ltd. Slip, 4 wheel disc ABS, Isspro EGT/boost gauges, black SmittyBilt nerf bars, K&N RE-0880 & pre-filter, no silencer ring, TDR decal, Jack holiday antenna ball
2001 Zinc Yellow SVT Mustang Cobra on order
NRA Life/CRPA/El Dorado #26 F. &A. M. of California

 

[Cooker]

I too am considering a 4" system at the moment. Currently, I'm leaning toward the DD. Like Joe D. said, they supposedly have spent alot of time eliminating the annoying drone of the exhaust. Does anybody know if this is true compared to a Jardine or JRE system?

It is a tuff decision. I think Jardine, JRE, and DD make a good exhaust. I wish I could hear, in person, each of these exhaust on a truck, maybe that would make my decision easier.

I would like to try a straight pipe before I put a muffler on. If the DD kit comes with enough pipe to do this, this might be the kit for me. Anybody know for sure?

 

[JR2]

I have the DD exhaust and love it. I don't know why you would want to install it with out the muffler... . the one supplied is fantastic. . it is esenttailly a straight through. . you can see right through it I mean. The system sounds great.

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John D. Rathert Jr.
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01 2500 SLT+ QC LWB 4x4 Auto 3. 54 rear end, Forrest Green Sport with all options avail. DC Nerf Bars, DC Grill Gard, DC mud flaps, Line-X bed liner, Leer 160XL Topper, Power Edge, EZ Edge, SPA Boost/EGT Gauge on pillar mount, DDT's torque converter - valve body combo, 275 RV injectors, Diesel Dynamics 4" Exhaust and a KN RE0880 where the air box use to be.
New turbo (HX40), SS fuel lines and bigger injectors in planning stages... .

See My Truck

Dads truck: 98. 5 3500 SLT QC LWB 4x4
Brother Truck: 92 W250 SLT CC LWB 4x4 (Dads old truck)

See 5 Diesels and a Gasser
Winter fun: 2000 Skidoo Summit 700
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FREE HVAC!!
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[Ram4Sam]

JR, how is the DD exhaust as far as the dreaded exhaust drone and resonance that some have?

Sam

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2001. 5 2500 QC HO 6sp LB 3. 54LS everything except leather, white/agate 2wd,Isspro guauges on the A,ME kit,DD Tru torque module, Psychotty


Fordaholic-clean and Mopar'd since 10/05/00

 

[JR2]

Sam - I have to honnest, it has a little drone but I have nothing to compare it to since this is the first diesel I have ever owned. That being said, I have asked everyone who has ridden in my truck if it botherd them, and they all yelled "slow down your freaking me out", no they all said it was great and it did not bother them. I take that back, my 85 year old grandmother was not impressed with it, but she likes oldsmobiles.
I am very happy with this system and would purchase it again in a heart beat.

 

[Whitmore]

I just ordered the jardean 4" this morning,I guess I am tring to support WYO first,Jerry lives in Dubois which is 60 miles from me,his son works on a ranch 15 miles from me and he will bring my new 4" with him when he comes back from weekend at Jerrys,I cant hardly wait #ad
Kevin 2001 eth dee

 

[K_Arts]

JR2 - As far as the drone... are your pipes clamped together or welded? I am getting ready to purchase the DD exhause, but I want my pipes welded together... just cause I have some friends that have clamped theirs together and they all seem to have a drone.

Will welding the pipes prevent the pipes from having a drone??

Thanks

Kev

 

[High Voltage]

When i got my system i was thinking of trying it without the muffler but the kit was about a foot short on pipe. That's ok,if you look at the muffler it's 4" straight through. Plus i like my neighbors(5 AM start up)As for the drone,normal speeds 65-75 it's ok,much faster and under some load there is some,after 22,2300 rpm but it's tolerable. I LIKE IT. #ad
#ad


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01,2500,2wd,Auto,3. 54,Med Bronze,Tan Leather,All Options,Mag-Hytec Diff cover,DD4",Westach combo, Line-X(BOMBED)Soooonnn

 

[Vaughn MacKenzie]

Guys with the DD exhaust: What brand is the muffler? How long?

how does it exit? With the tailpipe horizontal like the 12-valve trucks or aimed down & back, like the Jardine?

How much was shipping?

BLKDEMON, do you have DD's downpipe for your HX40? Is it mandrel bent, and did it cost another $150 or so for the system with the HX40 downpipe?

Vaughn

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'01 2500 QC Shortbed 2wd, 6-speed, 3. 54LSD, Cab & Fog lamps, Camper & Tow Pkg.
BOMBed: RV injectors, PS Boost module, Amsoil air filter, straightpiped exh. , Aeroquip 3/8" fuel line w/tank mounted lift pump, AutoMeter Sport Comp gauges, Line-X'd, Amber turn signal conversion.
Mildly BOMBed Performance: 0-60 @ 10. 0 sec. ,
40-60 @ 5. 5 sec. ,
0-100 @ 24 sec.

 

[High Voltage]

Mine are clamped and also welded,there is still some drone,but not to bad. Wife likes it. #ad

 

[RobbyRam]

My 'Y2K PSD 350 owning Boss' #ad
said the single best option he added to his chipped increased 400HP Ford was a 4" exhaust system. It lowered his EGT's and added quite a bit of power(15HP +) for towing his 5th wheel. I told him of my 3500's lack of power and the weakness of our transmission. He use to have love his 3500 RAM, but the company went to Ford's because of the 4-door option. Dodge is really losing because of idiotic marketing!


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Bob in Sacramento, Y2K Black 3500 ISB 4x4 4:10 LSD,Auto,QC,SLT Laramie, Slightly BOMBED LB, Polished Stull Billet Grill & Fog inserts, Chrome Smitty-Built Step Rails, Mopar Chrome-Tipped Mud Flaps, A-Pillar mounted West-Tach Turbo/Pyro/Trans Temp gauges,Rancho 9000's set at '1',Diamond Plated Tool Box, OEM U. R. Bedliner + other stuff.
Fact:The First Fords' had 'DODGE' Engines! The new PSD's need them!

 

[Joseph Donnelly]

I looked at the DD exhaust today. The exit seemed horizontal but check with them to be sure. The muffler was the Walker 4" that I prefer and use on my Ram ("Sickly"). They also have a very nice smaller version of a 4" muffler, smaller OD, shorter can, still perforated 4" inside pipe for zero restriction, shorter than the Walker. The small one can be used as a resonator if desired, in front of the Walker. The pipes have smooth mandrel bends, not too tight a radius for minimal turbulence or restriction.