I originally bought a stock box K&N for Green ran it for about a year with no problems, cleaned it twice, bit of a pain. Butt meter didn't really notice any performance gains, maybe got an extra MPG. Found out about the Amsoil EA, purchased and installed, no problems. Didn't notice the computer trying to relearn anything.
The K&N is now in Grumpy. I like the K&N, but I like the Amsoil better.
The K&N is now in Grumpy. I like the K&N, but I like the Amsoil better.
