Review on High Performance K&N Cold Air Intake Kit: Horsepower Boost, 50-State Legal: Compatible with 1997-2006 Jeep (Wrangler, TJ) 4.0L V6, Part Number 57-1514-1 by Timothy Jimenez

After returning another (cheaper) brand that just didn't fit right, I pulled the plug and bought a K&N and you got what you paid for. The installation was quite easy and uncomplicated, it took me about 1.5 hours in total. It also looks like it belongs there, cleans the oil filler cap and a slight adjustment of the dipstick allows for a good clean of the transfer tube. There are few cons but they are not enough to give 5 stars. Firstly, the plastic weld on the pipe could have been done a bit better to make fitting the rubber connectors easier and also to prevent scratching the rubber. Second, the rubber plug on the motor could have been a bit wider as it needs to be bent a bit to align properly (at least on my car), but that's no big deal. Would definitely recommend. 1997 Jeep Wrangler Inline6 4.0L. performance review later.