hp gain?

[Mudboy]

mustang is seeing a total different environment than most of these explorers lol

 

[kert0307]

I've had a K&N on my explorer for at least 75k it gets driven down gravel roads daily. 140k total on the ex still runs great doesn't burn oil, original timing chains without rattle. Oil changes 3.5-5k. I do have to clean the filter almost every oil change though.