BMC Italy (F1 PROVEN!) Stock Drop-In replacement filters for your M5/M6.
I have 2 incoming to me sometime this week. These are very high quality drop-in filters as most of you know. We've done multiple vehicles, ranging from M3's to M5's to M6's and all of them have posted positive power gains across the board. Bundle this with the pulley package that we are offering and you will hear, see, AND feel a difference.
Special deal for local residents of Southern California. If interested, local pick ups will receive free professional installation and an air freshner!
Please PM for special pricing. Thanks for looking!
Ed @ SP-POWER