Yea it the biggest one they make.. I uploaded another one.. check it out.. look for it under nakalex39.. I just uploaded it rt now

 

Was that with the windows down? Sounds really good, I think with mine going in the the stock location it should sound almost perfect..

 

i think we are on the same page, as im trying to switch now with a buddy who has stock exhaust with flowmaster 40, but im gonna buy a si/so 22" magnaflow

 

Windows up

 

Ouch.. May be too loud. Exhaust clip coming in 2 weeks

 

It's that time..

 

Hey scooter lemme know how that thing sounds im looking for the same exact muffler for my 2500HD its stock of course lol...

part # 12599 or 12469????

 

Flowmaster

http://www.youtube.com/watch?v=WMDNV...e_gdata_player

Magnaflow

http://www.youtube.com/watch?v=jYHro...e_gdata_player

Happy with the magnaflow performance. But it has serious drone at 35 to 45

 

I got the biggest one which is the 12599, hard to believe it got more drone then the flowmaster, but Ill trade the drone for the extra street performance..

 

i like the magnaflow sound better its more mellow to me not as raspy like the flowmaster.. im gonna go ahead and keep an eye out for the 12599 my drone prolly wont be to bad seeing its still got cats lo..

sounds good man let us know how u like it at wot. my wifes single 3" 14"round is loud as hell flying by cars on the right side of us..