2014 Sierra 5.3 LOVE IT
So, I toyed with getting one of these CAI kits for years, with my current truck and previous one. All the hype by some that say they add power, and others who say they do nothing. Initially I just had a higher flowing re-usable filter (K&N)in my trucks. Didn't see anything there. After reading BBP's review of CAI on a 5.3 and showing and out-performed other kits, I thought I would give it a try. LOVE IT. Great sound and increase in Throttle response. Great for towing!