Mufflers for the mighty Cummins

[KPancake]

I recently had the local exhaust shop put a straight pipe on the truck and am loving the sound. The only problem is that with the exhaust brake on, it makes a pretty sick sound. I would also like to mellow out the sound, so to speak. My question is "What kind of free-flowing mufflers do you prefer?" I don't know that much about what brand is good or bad. I was leaning towards the Flowmaster brand because i have heard good things about them. If you guys have any info i would be glad to hear it. Part numbers would be appreciated, if possible. Thanks in advance.

Chris

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2001. 5 2500,QC,4x4,ETH/DEE,Dk. Garnet Red,Agate Interior,E-Brake w/shifter switch,3. 55LS,silencer ring AWOL,straight-piped, Gooseneck Hitch with Drawtite brake control, every option but leather. 3500 miles as of 5/12/00. Accessories on the way include:Gauges, K&N.

 

[Cooker]

Don't get a Flowmaster. Check this link out: https://www.turbodieselregister.com/ubb//Forum1/HTML/003935.html

Walker 21468 (3") or 21471 (4") or the Dynomax Welded Race Magnum series is exactly the same construction as the Walker but only a little smaller so it will be a little louder. I don't have the Dynomax part numbers off hand. Dave Fritz put a Dynomax bullet muffler (very small) on his truck, it looks like a glasspack, and he is happy with it.

All of these you can see straight through.

-Ryan

 

[Bad340fish]

check out http://www.racemufflers.com They have a wide variety of straight throuh mufflers. I have not heard one on a cummins yet(I am sh*tcanning my flowmaster soon) but they do an excelent job of muffling a 10 sec race car!! The car is no louder than a stock mustang with flowmasters on it. Good luck
Clark

 

[drawson]

I also have a Dynomax Bullet muffler on and luv it. It take the edge off the noise just enough. #ad

 

[Sky]

I have the 40 series raceing flowmaster, and I have no complaints for about 25,000 miles so far I really like it. Dats my . 0002

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2001 QuadCab,SWB,Auto, 4X4,4" Flowmaster Raceing Exhaust, DTT TC & VB, EZ Box, Bosch 275 Injectors, Mag-Hytech transmission pan/Dana 70, K&N, 33" BFG AT'S... ... .....

 

[David Wheeler]

If you straight pipe the exhaust, does the resulting tone sound like one of those 10 wheel dump trucks? Or for you military folks, a deuce-and-a-half? I've had the opportunity to hear 3 trucks that have a wonderful exhaust sound. A little loud, but no biggie. Have never been in a situation where I could stop them and ask them how they did it. Ideas? Thanks!

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2001 3500 SLT, 4X4, ETH Cummins/DEE, LSD, 3. 54, Quad Cab, Long Bed, Agate, Camper Special Group, Towing Group, Additional Body Molding on Bed, Line-X bed-liner.

"REAL TRUCKS RATTLE!!"

 

[Briar Hopper]

I hate mufflers almost as much as I hate polyprophylactics ! #ad

Let 'er rip, never mind the neighbors. My neighbors don't mind, and I don't hammer it at 6:00 a. m. , out of respect...
Seriously, got a friend with a Walker on his Cummins, and he loves it.

 

[EMDDIESEL]

Borla makes mufflers up to 5" for race applications. Although i have never used one on a diesel. www.borla.com all they make is stainless steel, super high quality, pretty expensive, but you get what you pay for.