This might be a stupid question, but what are the differences between a Edge Comp box and a Edge Comp Drag box for a 2001 24V. 3500 Cummins. I've thought about going with a TST/Smarty stack but it sounds like the majority of people still prefer the Edge Comp/Drag. Please advise, JCH
:-laf
2001 3500 24V, 6-speed, 275inj, ispro gauges and 4" off the turbo and all the way out!

2001 3500 24V, 6-speed, 275inj, ispro gauges and 4" off the turbo and all the way out!