njmaier

I know it might just be easier to go to the local exhaust shop and get a 4 inch pipe run, but does anyone sell an exhaust system that is just a straight pipe? Where would I find one? Is it easier to just buy a system and just not use the muffler? Thanks.

Forrest Nearing

most places don't give much of a discount when you delete the muffler...

but your truck already has 4" exhaust, why not just straight pipe it w/ some 4" pipe?

Forrest

OOPS

I talked to a muffler shop yesterday here in Roseville about straight piping my rig. He said it would run about $80.00!

Forrest Nearing

is that TRUE straight pipe? no cat, no muffler? if so, then I'd say it's a decent deal...

Forrest

njmaier

OOPS,

That's a great deal. All the local shops where I am want at least $500 to run a system for me.



Forrest Nearing,

My truck is straight piped already (cut the muffler out the first day I had it!), but I thought that the 03 models had a 3.5 inch pipe before the muffler and 4 inch after?

OOPS

Cat back, I live in California where the SMOG ***** do not take it as a joke, besides I want my kids, kids to be able to breath!!!!

PourinDiesel

Said like a true Californian.

Car_nut57

We have the parts you need to make the cat back straight pipe system. You will need to rotate the cat 180 degrees and use a transition pipe with off-set to go from your 3.5" pipe to the 4". Look at the line drawing for the Aeroturbine on this page and just delete the Aeroturbine from the picture. http://www.dieselpowerproducts.com/exhaust2 You will be reusing your tail pipe as it is 4" and just replacing the pipe in the middle of the system. The hardest part about doing this is grinding off the lug on the down pipe to cat connection and rotating the cat. Give us a call and we can put a kit together for you.

njmaier

car_nut57,

I guess I should have specified that my truck does not have a catalytic converter. I should have said a turbo back system. I'm a big Mustang person...just used to refering to an exhaust system as a cat-back. Thanks.

Forrest Nearing

my buddies w/ 3rd gens, just cut the cat and muffler off, and run a length of straight 4" pipe between the downpipe and tailpipe.

Forrest

Hoss

DPPI offers a straight pipe option but it actually costs MORE to get it. I don't quite understand the logic behind that but it is available. I believe they charge more because instead of just sending you the straight pipe section they send the straight pipe section AND the muffler (Mark told me they do that because most people who ask for straight pipe end up calling them back and asking for a muffler).

Of course, the easiest and cheapest thing for you to do is just cut your muffler out and get the MEP pipe from Geno's.

EDIT: I just noticed you have an '03 like me. If I had to do mine over again I'd order a 4" Banks downpipe and an 8 foot section of 4" straight pipe and re-use the stock tail pipe. That would give you about the best flow you're gonna get with a 4" system and it would be a LOT cheaper than buying a complete system.

Forrest Nearing

there is no inspection on diesels in California...

whatever you do, don't buy an 89-93, or 98-03 Cummins, no cats on them... I'm surprised your kids are still alive!