Review on K&N Cold Air Intake Kit: Enhanced Performance, Horsepower Boost: Fitment for 2011-2017 JEEP (Compass, Patriot) 63-1567 by Colin Watkins

Took 3 hours to install. The airbox did not level completely. As a result, it still coincided with some scams. It's a bit noisy under WOT. Sounds great on any throttle input up to about 90% of bottom. The transmission no longer downshifts as hard as it used to on small hills. It just pulls up. Sounds like a jeep should. It seems to be running a few revs less than it was at cruising speed. Average consumption increased from 20.9 mpg to 23.89 mpg. The same driving style as before. Now I have 4120 miles on the jeep. No questions.