Silverado with Banks monster exhaust
My 2006 silverado z71 with a 5.3. It has a cold air intake, cats removed, and a banks Exhaust. The Exhaust is a full 3 inch mandrel bent cat back with a 5 inch tip.
2014 Silverado AFE 3" Cat Back Exhaust
my 2014 Silverado 5.3 with AFE's 3" cat back Exhaust. not too loud in my opinion until you get on it, but regular driving and highway driving, it stays pretty quiet. no drone whatsoever. definitely worth getting.