Attention: TDR Forum Junkies 
I am currently running a 4inch open exhaust... the sound WAS great, but is now getting a little old. I also would like to install a single stack, with muffler of course! 
My question is: with all the 5. 9s currently running in medium duty Fords, FL-70s, etc. . have any of you used a muffler from a "business-class truck"? They are certainly cheap enough and in-stock! Ideas??
My question is: with all the 5. 9s currently running in medium duty Fords, FL-70s, etc. . have any of you used a muffler from a "business-class truck"? They are certainly cheap enough and in-stock! Ideas??
