K&N Performance F8X M3/M4 Replacement Air Filter

K&N Performance F8X M3/M4 Replacement Air FilterK&N's drop in replacement air filters for the new F8X M3 and M4 are designed to increase horsepower while providing excellent filtration. Filters are washable and reusable and are custom designed to fit into your existing factory air box.

Forged from alloys used in the aerospace industries

Committed to enhancing the performance of BMWs through the highest quality products is what Active Autowerke is all about

work duty and racing brake pads to fit both OEM calipers and StopTech Big Brake Kits

conventional and blended motor oils

As tested on a BMW M3 | M4

carbon fiber tips with CNC-machined

and two toggle links for rear adjustment

and more air flow out

The kit includes progressive rate lowering springs for each corner of the car

GLOSS BLACK W/ MIRROR CUT LIP

H&R Coil-Overs feature a fully-threaded shock body (not an imitation sleeve-over) that allows you to precisely dial in height adjustment to achieve optimum weight transfer

quality and beauty