DodgeCTD

I just had my muffler taken off and a 4 inch pipe put in its place and it sounds great, i actually want it to be louder,I left the cat on there for warranty concerns but when thats up im goin 5 inch straight pipe goin to 2 6 inch stacks. As for leavin the cat on or off i cant tell you, but with just the muffler off it aint too bad untill you really get on it and even then it sounds awesome.


Mike

6006spd

pipe it ! make it sound like a cumminz should! did mine never once regret it!

WEATHERBY460

I got a 36" piece of 4" exhaust pipe today...........do you think I will be able to put it on myself, or will I need special tools to get the muffler off and the pipe on?

its a new truck, so it shouldn't be rusted on too bad.

gsbrockman

The rust isn't the problem...............it's the crush-type muffler clamps the factory uses when assembling the exhaust system onto the truck.

Greg

XLR8R

Amen brother!
I hate those things
Every time we exhaust a new vehicle, the whole system gets sawzalled off, any remaining crush-clamps are removed by the bandsaw, and the new stainless steel exhaust goes back in tig-welded (butt or slip-joint) or bolted (we fab our own SS flanges & gaskets) together.

Michael1

Those crush clamps are a total pain, and just plain cheap! I wish the American auto manufacturers step up to the quality of the Japanese exhaust systems. Their systems are flanged, even on their lowest priced cars, and a snap to work on. They've been doing this for a good 25 years.

Toyota makes good money offering their TRD mufflers for various vehicles, which just bolt onto the flanges.

Michael

triplenickle

Thats an easy answer- our 2004 dont have kittys

Silver04

Oh! Then what's the pipe in between the turbo and the muffler? It looks like either a kitty or a resonator. I do believe I am going to straight pipe the whole thing. Do 04's have 3.5 inch exhaust or 4?

Boz007

Is it an 04 or 04.5? Early 04's were the 305/555 version without cats and 3.5" pipe to muffler, 4" pipe after the muffler. 04.5's (any truck built after Jan 1, 2004) is the 325/600 with cats and 4" pipe from the turbo back.

wallypedal

There have been a couple hints as to the main problem with straight pipes - depending on the rpm you run at and the load when towing heavy, you can get a steady drone sound that will maybe bug you. It did me, and I tow the same load a lot, so the Geno's came off. Loved it when not loaded though, wish I could have it both ways!

WEATHERBY460

local machanic will do it friday morning for me....can't wait.

mjsandt

You wont regret it. I love the way mine sounds. Just try to keep your foot out of it, and see how hard that is!!!

Matt Sandt

triplenickle

I was just getting ready to order the M E K from Geno's, when I noticed it says it is a 3" pipe, obviously smaller than stock. Will this let the exhaust flow better than with a muffler, but also provide just a bit of backpressure which it needs? I went to two muffler shops today, not one has 4" pipe. 3 and 3.5 inch is the common size. I may just go get a piece from a truck shop, and have a muffler shop bend it to a S, due to the offset stock system. Anyone got a quick list of hardware needed for the install?

Silver04

I just took my truck to a diesel performance shop and he said it's a 2004.5. He cut me a piece of pipe and expanded the two ends so I only have to slide it on and clamp it. Cost me $90 bucks and I can't wait til I have time to put it on. I just bought a banks six gun tuner off ebay and it said for 03-04. I guess it won't fit my 04.5? I hope so but if not then I can resell it. I hope I like the straight pipes.

nofender

I just finshed straight piping mine about an hour ago. What a bear! I hope you don't have any illusion of saving the muffler. I tried and failed. I ended up just cutting it out. Geno's does make a 4 inch pipe, as I just installed one. At idle it is hardly louder than stock. I had my wife drive it around the block so i could hear what it sounded like outside the truck. Not bad. Very nice growl. I love it. Inside the cab it is no doubt louder. But my wife and i were able to carry on a conversation without a problem. Overall, a good mod. I love the sound and the feel of it. Not to mention it compliments the Quad and the cold air kit very nicely I can't wait to hook to the trailer this weekend!