Just a little more info on this system. It is a 70 Series Big Block muffler, Flowmaster Force II System part #17328, you can go to Summit Racing website and search this part # for an idea of what it looks like, I would post some pics but my digital camera bit the dust the other day. This system will require some welding.
01 CHEVY 2500HD 4X4 ECSB, K&N, Pacesetter LT'S, 4.10 GEARS, 4L80E, 285/75/16 NITTO TERRA GRAPPLER AT'S , ALPINE CD PLAYER, 2 MTX 10'' SUBS CUSTOM ENCLOSURE, MTX 800 WATT AMP. NELSON TUNE, ASP PULLEYS, AND 05 E-FANS, Flo-Pro HD MUFFLER, LS6 PCV CONVERSION.