The main thing the 6th gen needs is WEIGHT reduction. If GM can get weight down to the 3500lbs range, which going to the lighter caddy chassis can do, the current LFX will be fine on the 6th gen. I would not mind getting current LFX on a 3500lb 6th gen at all. All I would want is a a TQ increase w/ current LFX---oh somewhere around 300 TQ would be sweet.
[C.A.I. intake | VMax TB | Solo Mach X-LLT Catback | Solo High Flow Cats | TSW Interlagos 20x9 Fronts, 20x10 Rears w/ Nitto Invos]