New exhaust........No power difference!

[chris142]

Took my truck to the muffler shop next door. They hacked off the restrictive "Y" where the 2 pipes come together. Got rid of the original stock muffler and tiny tailpipe with the screen in it. From the manifolds They ran two 2.25 inch pipes about 4 ft long to a 3 inch "Y" then into a 3 inch truck muffler that I could see right through then a 3 inch tailpipe.

No performance difference at all!

I'm bummed. I was sure that getting rid of the exhaust restrictions would free up a little power. Didn't expect a racecar but since I drive the same roads every day I expected a little improvement on the hills and get up and go.

It is still pretty quiet but does not sound like an air hose anymore.

They originally put on a magnaflow but I didn't like the noise level(Yes I'm over 40).

 

[Shadetreemechanic]

exhaust is only a restriction if you have enough fuel and air getting into the cylinders at the right time. Is it smoking when you give it full throttle?

 

[chris142]

It does not roll coal but will leave a cloud and I can see it coming out the tailpipe in my mirror.

 

[Devon Harley]

I don't think you would notice unless you went wiTh a straight pipe I noticed the difference and before I ha 40 series flow master that dumped by rear tire and I cut out and welded another piece straight 3in its not to loud honestly unless I'm in it 3/4 or full throttle

 

[icanfixall]

I'll bet your fuel mileage will go up. Wait and see before you write it off.

 

[Shadetreemechanic]

It does not roll coal but will leave a cloud and I can see it coming out the tailpipe in my mirror.

So it sounds like its getting enough fuel, do you know about your timing?

 

[towcat]

Took my truck to the muffler shop next door. They hacked off the restrictive "Y" where the 2 pipes come together. Got rid of the original stock muffler and tiny tailpipe with the screen in it. From the manifolds They ran two 2.25 inch pipes about 4 ft long to a 3 inch "Y" then into a 3 inch truck muffler that I could see right through then a 3 inch tailpipe.

No performance difference at all!

I'm bummed. I was sure that getting rid of the exhaust restrictions would free up a little power. Didn't expect a racecar but since I drive the same roads every day I expected a little improvement on the hills and get up and go.

It is still pretty quiet but does not sound like an air hose anymore.

They originally put on a magnaflow but I didn't like the noise level(Yes I'm over 40).

honestly speaking, nothing will yield impressive results like a turbo kit will. but then again, I made a living with my "slow" F450 carrier since 1993.

 

[snaponprofile]

3 inch isn't that big. you should go 4inch from the Y.

 

[Dieselcrawler]

Three is fine.

 

[CaptTom]

Have you turned up the recommended flat?

 

[snaponprofile]

I know three is fine, but four is better.

 

[Blind Driver2]

I like the ATS 088 muffler better

 

[chris142]

Have you turned up the recommended flat?

No I'm skared. This is the nicest truck I have ever owned. I don't want to burn it up. As for the timing. No clue. I'm brand new to the 6.9/7.3 lifestyle and have not gotten to that part. It seems to run very smooth and runs good(all 8 are working) , kinda gutless like the others I have read about.

 

['94IDITurbo7.3]

do you have a pyro?

 

[chris142]

no pyro