BMW G30/G31 5 Series Diffusers
2 products
The right BMW G30 rear diffuser depends first on whether your 5 Series has the M Sport rear bumper. We list one carbon fiber diffuser for M Sport cars, which also names the G31 Touring, and one for the standard bumper, sold as the SE trim in the UK.
Both arrive with predrilled holes and need drilling to fit, so plan on a professional installer.
BMW G30/G31 5 Series Diffusers buying guide
Picking a BMW G30 rear diffuser by bumper
The M Sport package gives the car M aerodynamic bodystyling, so its rear bumper differs from the standard one and a diffuser made for one will not suit the other. The M Sport diffuser is listed for the sedan and the Touring. The SE diffuser is for the standard bumper and names only the G30 sedan. Not sure which you have? Check the window sticker or build sheet for the M Sport package, or text a photo of the rear to 609-525-4865.
Facelift and Touring checks
For the 2021 model year BMW redesigned the M Sport bumpers and reshaped the rear diffuser panel. If your car is a 2021–2023 facelift, send us a photo of the rear before ordering so we can confirm the fit. The SE diffuser is listed for 2017–2020 cars. Touring owners are usually driving imported cars, since BMW never sold the G31 new in the US.
Test-fit the diffuser before you drill. Once drilled or installed it can't be returned, but if it doesn't fit the car named on its product page, contact us before installing and our fitment guarantee covers the return shipping. More carbon for the car is on the G30 and G31 5 Series page.
Frequently asked questions
How do I know if my G30 has the M Sport rear bumper?
The simplest check is the window sticker or build sheet, which lists the M Sport package if the car has it. M Sport cars also carry an M badge on each front fender as part of the package. If the bumper may have been swapped, text a photo of the rear to 609-525-4865 and we'll tell you which diffuser fits.
Can I fit the M Sport diffuser to a 2021–2023 facelift?
Ask us first. BMW redesigned the M Sport rear bumper for the 2021 model year, including a reshaped diffuser panel, and our M Sport diffuser's description names pre-facelift years. Send a photo of your rear bumper to 609-525-4865 and we'll confirm before you order. The SE diffuser is listed for 2017–2020 cars only.
Does the SE diffuser fit the G31 Touring?
Its listing names only the G30 sedan, so we can't promise it fits a Touring. The M Sport diffuser is the one listed for both the sedan and the G31 Touring. If you have a Touring with the standard bumper, text us a photo before ordering.