Just finished installing the K&N 77 1563KP cold air intake in my RT with a 5.7 Liter engine and I could not be happier.The CAI is everything I was hoping for and more. Installation was unbelievably easy, the directions were precise and the online video from K&N was perfect. Only took an hour to install. The CAI completely changes the look under the hood. The sound the engine makes is stronger and louder. It has definitely increased my truck's horsepower and acceleration. Definitely recommend it.
Just installed the Kn filter set up. It seems that the acceleration has improved slightly. The noise sounds similar to the old four barrels kicking in. It definitely resonates into the cabin. My truck has a magnaflow muffler so it's a little loud but nice. The instructions were pretty clear and installation took a little over an hour. The system mounts solidly. I would've preferred metric bolts for installation just so everything is uniform. I would rate it 4 stars across the board.