Are K&N air filters good to use and do they actually increase HP and mileage
Monday, July 21st, 2008 AT 7:45 PM
1 Reply
BLACKOP555
MECHANIC
10,371 POSTS
They increase hp that much, and maybe a little gas mileage as the engien is running more efficently but wont make that much more horsepower, unless you go with a catback system if you wanna see hp and mpg results because, whats hte point of getting more air if it cant get rid of the extra gasses.