im looking to do a muffler change i dont have the money to do a whole new system. i read some posts on the 51" donaldson that sounded pretty good. anyone have any more insight on this system? i dont want something really loud just a nice low deep sound that lets more people hear what im driving. seem the 34" muffler might be too loud. if there is another muffler out there that sounds to what im looking for what are they? how do these mufflers sound with an auto tranny, i wish i got the 6 speed!!! i hope they dont sound to horrible with an auto. also if any of you know of any sites that i could listen to different exhaust sounds post those too. THANKS!!!!
Eric

 

I have the 34" on mine, simply cut out the old one and clampoed this one right up in less than an hour...I like my trucks fairly quiet and it certainly isn't too loud for me. Highway it is as quiet as stock, just hear it a bit more under acceleration. My mpg picked up a little bit, and I removed the baffle tube from the intake and replaced it with 5" exhaust pipe, to hear the turbo better. If you floor it while pulling 10,000 lbs it gets pretty throaty and makes the seat belt clips by your head buzz a little but only during those situations. I have heard the 51" and its barely any louder than stock--so if you want much of a tougher sound I would maybe look elsewhere.