BMW 3 Series F30/F31 Rear Diffuser — Gloss Black, Single Left Exit (M Sport, 2012–2019)

For the BMW 3 Series F30 Saloon and F31 Touring with M Sport bumper and single left exit exhaust — our gloss black rear diffuser adds a sharper, more aggressive finish to the rear-end that integrates cleanly with the factory bumper flow.

⚠️ Single left exit exhaust configuration only. This diffuser is designed for the single exhaust tip exiting on the left side of the rear bumper. It will NOT fit dual exit, dual left exit, or quad exit configurations. Please check your exhaust configuration before ordering.

M Sport bumper only. It will not fit standard SE, Sport Line, or Luxury Line bumpers.

Direct-fit compatibility — M Sport bumper with single left exit exhaust only:

• BMW F30 3 Series Saloon — M Sport with single left exit, 2012–2019
• BMW F31 3 Series Touring — M Sport with single left exit, 2012–2019

Common models with single left exit exhaust include 316i, 318i, 320i, 320d, and 318d. Please verify your exhaust setup by looking at your rear bumper — if you have a single exhaust tip on the left side only, this diffuser fits your car.

Manufacturer references: BMW, 3 Series, F30, F31 are trademarks of BMW AG, used here solely to indicate product compatibility. AutoCap Solutions is an independent aftermarket retailer and is not affiliated with, endorsed by, or authorised by BMW AG.

All AutoCap Solutions products are covered by our standard replacement policy in the rare event of manufacturing fault.