No doubt! The new LMM is very quiet and has no soot discharge at all. If you want quiet--go LMM. But for my sleeper, I would do a NBS RCSB Z71 LBZ/6speed Allison 1000 on a 3/5 drop. Full quiet exhaust with an e-cutout like you were saying...so that you can cruise around lookin all normal and stuff and then hit a switch for the e-cutout and programmer...and let the other guy eat soot!