The Corvette system is over $2500! WAY too rich for my blood. ....there's video of the 'Vette system, and it's on an LT1 as well, so I imagine the sound is pretty darn similar. The video I saw
is from Corsa, so you never know, but sounded like typical Corsa, so I imagine it's accurate. I'm 100% completely happy with my non NPP, AWE Touring set up, but if you need that quiet mode, then AWE doesn't fit the bill.