These are Dynomax Hemi Turbos with a 3 1/2 to 3" X pipe and full 3" TTI's going all the way back.

Nothing but Everywhere I go. BTW this is a 517" 12:1 max wedge with a big overlap roller; I knew a motor like this would be way too loud with Ultraflows or any other straight through system.

http://www.youtube.com/user/wizerulz?feature=mhee#p/a/u/0/jd8GeXYYkKU

I Ran 3" 3 chamber FMasters on my old 550 horse 451 low deck duster with FLowmaster pulse techs phased 180 and a full 3", it had super nice tone but it was just too loud at idle and droned worst in the 2500-3500 range, a pair of Dynomax bullets used as resonators kept the tone, killed the drone and dropped the Db's to a very tolerable level.