Hey anyone know what is the best way to put in the muffler? If I put it in one way the holes in the muffler face the truck so that it catches the exhuast, turn it around and the exhuast goes over the holes. My question: what is the difference in sound and air flow? has anyone put it in one way and turned it around to see what the difference was? thanks chris

 

I have the hog performance muffler and i have the holes forward so the air gets caught. But it is a straight thru exhaust I am not sure about the one you are asking about.

Anyways I was thinking about turning it around to see what difference it made.

 

ya the one i got is strait through, if you turn it around let me know what the diff. is

thax chris

 

Check this thread.

https://www.dieseltruckresource.com/...threadid=53318

 

I just installed a 4'' free flow muffler from Diesel Power Products. Said right on the muffler to face the holes towards the engine.