K&N Performance Cold Air Intake System: Easy Installation, Engineered to Maximize Airflow, Boost Horsepower & Torque, 57-1513-1

I thought I gave this performance part a review when I first bought it in 2004 when i bought my 2004 WJ 4.7 H.O. SO, ever since then until now it's been still performing excellent and never had any issues with my Air intake system. Thanks again K&N!!!!!!

After purchasing a 57 Series FIPK GenII intake for my '02 Jeep Grand Cherokee I had a question about my appliciation.  I happen to have the 4.7 HO engine and wanted to make sure there were no differnce between the standard 4.7 V8 and the HO 4.7 V8.  I wrote an e-mail the same day my intake arrived and received confirmation that the intake will install with no differences within 2 hours.  Great customer service!!  Instructions were well writen, the kit is very well designed, and the results are obvious.  The intake sounds awesome and almost made my Jeep sound like it has an exhaust system.  Thats my next mod.  No need to run it on a dyno; you can feel the throtle response, mid-range torque, and HP gains at the top end.  Not sure about MPG improvement cause I can't keep my foot off the gas, but if you're worried about your MPG don't own a V8.  I've ran K&N intakes on all of my last 4 vehicles and plan to for any future vehicle.  Great product!!

Great product. Installation was super easy. Noticed gain in power and torque. Also, gives my jeep a very aggressive sounding tone with my aftermarket exhaust. Will use a K&N on every vehicle I own, even my Harley.

Easy to install, Works great, Makes my car Sound louder and made driving more fun, I just flat out love it and i am very pleased with the quality of K & N.

Picked this up for my 1999 Jeep Grand Cherokee Limited. Works like a dream, and installation is pretty simple for the most part. Great sound, nice power, and it just looks super cool. Decent price.

Performance kit for Jeep Grand Cherokee Limited Just finished installing (air intake) kit 57-1513-1.  Simple, about an hour and 10 min.  30 mile test run seems to indicate about 1.3 mpg increase.  Itching for a longer trip.

Delivery was as promised and installation of the performance air intake took only simple hand tools It would have been nice if the cloth cover was included in the kit.