Muffler Delete

[FordGirl514]

Hi, I'm sure this question has been asked 1000 times, but I have already deleted the cat and I was wondering if any problems would arise if I deleted the muffler as well and put a straight pipe?

[TwinTurboStroker]

Originally Posted by FordGirl514

Hi, I'm sure this question has been asked 1000 times, but I have already deleted the cat and I was wondering if any problems would arise if I deleted the muffler as well and put a straight pipe?

Nope

[FordGirl514]

nice truck! love the peterbilt emblem

[dlonno]

Neighbors might not like it.

[stroken04]

your gonna love the strait pipe

[Dirk]

Originally Posted by TwinTurboStroker

Nope

Correct. Only problem you may have is emission testing... *IF* they ever start looking for it. So far, it's only rumors. I kept my original exhaust in the garage just in case.

[TwinTurboStroker]

Originally Posted by FordGirl514

nice truck! love the peterbilt emblem

Thanks.....yeah people may not like how loud the truck is, but you will

[rageingbull]

how much louder in cab???? without muffler
is ther such a thing as a muffler delete pipe or do you just replace with inch inside dia pipe??

[FordGirl514]

mbrp sells a muffler delete pipe.. but i'm sure you can go to any muffler place & they'll weld a pipe in for you right there. i definitely will pass doing this if it gives me crappy fuel mileage though

[Dirk]

Originally Posted by rageingbull

how much louder in cab???? without muffler
is ther such a thing as a muffler delete pipe or do you just replace with inch inside dia pipe??

Depends on the truck. A straight pipe 6.0 can sound completely annoying or down right mean. On my 7.3 with a 4in turbo back exhaust WITH a magnaflow muffler sounds like a kitten. Not loud at all.

When I was testing my new stage 3's, I only had the down pipe and 3 feet of pipe connected. It sounded horrible to me. Ever heard a high compression engine running on small glass pack mufflers? Very loud "Bark"? That was it.

Talk the the board vendors about a muffler delete pipe.