Price: $213.00 Pros: Effective.
Adds a nice little roar to the little 2.4.
Improved acceleration and MPG.
Cons: Noticeably louder under acceleration (still sounds better though) than OEM air box. Recommended? Yes
Comments: Recently I ordered and installed this K&N 63 series Air Charger (63-1552) in place of my Patriot's factory airbox. The factory air box was shown to be a major performance bottleneck. I thought I was not going to notice much of a performance improvement over the K&N drop-in rectangle filter, which gave me another MPG or 2 over paper. I rather enjoy the modest growling when I must accelerate hard ;-P. If I have to get a couple components cleaned every 40K miles or so, so be it, I'm getting another 4MPG over factory and a very pleasing response, engine is much quicker to respond to the gas! I drive 60-80 miles a day in mixed traffic and wished I had gone to a CAI years ago. Installation was relatively easy with clear, illustrated instructions, though a flex/ratcheting wrench would have made a couple tight spots easier to work the bolts.
Pros: definite power increase, better gas milage Cons: none Recommended? Yes
Comments: I would absolutely reccomend this product. Jeep is a stock TJ and with this product I get roughly 8 more miles to the tank load and you don't have to press the accelerator down as much to get the same response as before. Install was incredibly easy. I think best bang for the buck