One of the easiest and best ways to upgrade your M140i/M240i engine’s breathing abilities is with a replacement performance panel air filter.
We’ve developed our own range of MMR performance cotton-gauze filters that easily drop into the OE airbox which provide excellent filtration properties, combined with instant performance increases and induction noise enhancements.
- 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