Carbon Fibre Exhaust Tips – M Performance Style (Set of 4). Enhance the rear-end appearance of your BMW M car with these M Performance style carbon fibre exhaust tips, designed to deliver a clean, aggressive OEM+ finish while retaining premium build quality. Key Features. High-quality carbon fibre outer with stainless steel inner. M Performance style design. 70mm inlet diameter. Supplied as a set of 4 exhaust tips. Heat and corrosion resistant. Vehicle Fitment? BMW M2 (F87)? BMW M3 (F80)? BMW M4 (F82). Installation Designed to fit exhaust systems with a 70mm inlet. What’s Included. 4x Carbon Fibre Exhaust Tips.