Local muffler shop here charged me 50.00 to remove muffler and install delete pipe and also you'll love the sound . I've had a lot of powerstroke owners ask what type of exhaust I had because it sounded that good ...........

 

where did you guys get your delete pipes at. i cant find anyone around here that can bend a 3.5 inch pipe to delete the muffler

 

Look closely at the pipe just in front of the muffler. It has a slight S-bend in it. When they remove the muffler, have them rotate that pipe 180 degrees, so the S bend will be higher at the top. That brings the difference between that part of the pipe and the tail pipe a lot closer together, so now the new pipe that goes in between can be straight, and doesn't need bends (the ends may need to be cut at a bit of an angle to fit. I believe this is the way many have installed the Walker Big Truck Muffler (BTM) over at TDS. I don't plan to get the BTM, I just plan to have a muffler shop do what I described with a 3.5" delete pipe.

 

do you mean rotate it from the downpipe or cut out the bend and rotate it?

 

The short "S" pipe just before the stock muffler is just clamped, no cutting necessary. Remove the muffler, unclamp the "S" pipe and rotate it 180*. The downpipe and rest of the exhaust pipe doesn't need to be touched.

 

In my area it actually is considered a muffler.

 

Have you noticed any increase in mpg or decrease with the new exhaust? I have worked with small diesel engines a lot, and putting more exhaust isn't always good

 

did you guys just weld it or clamp it in. im thinking of clamping it because if i get a ticket i can just throw the muffler in without having to modify it too much or cant it just be clamped

 

you can weld it or clamp it....what ever floats your boat!!!! Both seem to work fine.

 

Hey, thanks for all the input so far, but just wondering if there are any adverse side effects to running this delete pipe. Do the straight pipe systems hurt mpg or power in any way, I have heard a few recently, and they sound great, but just want to make sure I don't goof up, and do something that is going to hurt my truck, my power, and my mpg. My truck is a daily driver, with the occasional horse trailer, only mod is a K&N air filter. Thanks for any other help or advice you can give. God Bless!

 

I did'nt notice any difference in mileage, the performance seemed better. If you take in more air you have to let out more exhaust. So cut the muffler and you'll enjoy your truck and the sound better.....That's my sole opinion........ P.S. My 95 powerstroke gained 2 mpg when I done this, except it had a cat that I also gutted when I removed muffler...........

 

My advice: GET RID OF THAT K&N!! Especially if it's a drop in factory replacement; they are notorius for leaking dirt and dust past them and into your turbo. Dirt & dust will destroy your turbo rather quickly, and yes, that will hurt mpg and power. If you want a higher flow air filter for cheap, do a search for the kwikk filter mod. See my gallery for examples. If you're concerned about noise, then go with an Ford AIS setup; they're just more expensive.

Now that I've got that out of the way, running a straight pipe will not hurt your mpg or power in any way. It should help it if anything. Putting a straight pipe on the truck is not going to hurt it either, in the sense of causing irreversable damage. If you've got the money though, I'd go for some type of straight thru muffler, and preferably a turbo back system. I had a straight pipe in my truck for a while and liked it around town, but when we started towing the trailer from one race track to the next over the summer, the drone in the cab was so loud at highway speed that we nearly had to yell at each other just to have a conversation. So, I put the straight thru muffler in place that came with my turbo-back system. Talking suddenly became much easier when towing a trailer on the highway.

 

Here is a picture and description that shows just what needs to be done to do a simple muffler delete:
http://community.webshots.com/photo/...72780617HZIAgb

It is from a member named twistedtj over at TDS.

Also, here is a sound clip of a 7.3 with a muffler delete, but otherwise stock exhaust. He had the mic on his laptop about 6 feet from the truck, and just revved it at idle to around 2400 RPMs or so. Quality of the sound clip isn't that great (it's a laptop mic ) but you can still get a good idea of the sound of the exhaust.
http://webpages.charter.net/jimtjr1116/wavs/truck.wav

I'm taking mine in to a muffler shop today to get it done... if I could weld I'd do it myself, it seems so stinking easy!

 

Too late to edit post, but the sound clip I posted above was from JimTJr at TDS... gotta give credit where it's due!

 

Did the muffler delete on my 2000 today... SOUNDS AWESOME!

Has a nice constant whistle at idle or coasting around a parking lot, and a nice bark when you goose it, and a fluttery roar when you get on it. I'd never go back to anything else after hearing this. Recommend it to anyone.

Cost $60 at the muffler shop... would've been much cheaper if I knew how to weld, because it's an easy job.

I also scored a free piece of 4" exhuast pipe to replace the ABS coupler I'm using in my homemade tymar.