Alright lookin at buying a new chevy have always had 5.3l but now lookin at the 6.2l gas milage is a strong consideration. What are the 6.2s gitting with a CAI, full exhaust and a tune and what kinda power r they gitting? Any other help or advise is greatly appreciated looking at gitting 350 ish rwhp with either as well. THANKS ALL

 

Don't waste your time on a 5.3. My 6.2 short crew averages 19.5-21 on a long highway cruise driving it sanely. It has tons of power and will fly when you need it too. 5.3's gutless turd in stock form with mediocre gas mileage because it's workin it's *** off to pull a heavy truck around. I have few mods but nothing major volant/magnaflow muffler resonator delete and a mile tune.