MMX Panel Filter – BMW M4

One of the easiest and best ways to upgrade the breathing abilities of the S55 M4 cars is with a pair of performance panel filters.

We’ve developed our own range of MMX performance filters that easily drop into the OE airbox which provide excellent filtration properties, combined with instant performance increases and induction noise enhancements.

FEATURES
Increased engine performance
Improved induction noise
Designed to be used with the OE air filter housing
Easily fitted and completely washable.
Once fitted this product will last the lifetime of your engine