Upgrade your Factory F90 M5 Exhaust Tips to larger BMS Billet Custom Tips The BMS angle cut billet 3.75" exhaust tips are the perfect choice for dressing up your factory F90 M5 exhaust outlets. 27% bigger than stock these unique billet tips are sure to turn heads. They can be adjusted to the desired length and are equipped with set screws so they go on easily and stay in place. Available in ceramic matte black and polished Silver Billet. The ultimate exhaust finish ceramic coating can withstand extreme temperatures up to 1200 degrees and provides a durable and great looking finish that rivals OEM quality and longevity. Made in the USA.