Muffler or NO Muffler?

[krupatex]

So what is better? Is it better to get an after market muffler (exhaust system) or is it better to hack the exhaust right in front of the stock muffler and add some 4" exhaust pipe straight back and out the side???

Where is the line between letting the motor breath better and having a lil' back pressure and what is best to achieve the both?

[farmboy930]

i have both a straight exhaust exiting in front of the rear on my 99 reg cab and a 4" tb ss silverline exhaust i like both the aftermarket exhaust is much quiter which is nice on trips straight exhaust sounds good purrin through town lol

[4everlearning]

From what I have read I would say straight pipe all the way back is the happy medium.

[fordmugg]

I had the stock exhaust straight piped no cat or muffler and now I just put a 4 inch turbo back with cat delete but it has the muffler ...I'm waiting for the muffler delete pipe to come right now because it got too quiet I need some growl ...so straight pipe all the way

[powerstruck]

straight pipe it, I started with a muffler on my kit and it didn't last long.

[sevenmalards]

Originally Posted by krupatex

Where is the line between letting the motor breath better and having a lil' back pressure and what is best to achieve the both?

Turbo diesel doesn't need backpressure. By eliminating the muffler you get a quicker spool up on the turbo (no backpressure) and you will lower your EGT'S maybe about 20 degrees.
I ran a system, now it is straight pipe, it isn't that loud until you open it up, plus you can really hear the turbo.

[rednekexprez]

How about the old Harley saying..Loud pipes saves lives..

[redstroker_2002]

no muffler are you crazy?

[farmboy930]

Where can i find a muffler delete pipe for my silverline exhaust

[chappy248]

Straight Pipe!