LED Rear Diffuser – BMW 4 Series F32 M Sport (2014–20)

A rear diffuser for the 4 Series M Sport rear bumper with a built-in LED center light. Pick the version that matches your exhaust tips.

Fits

• BMW 4 Series F32 coupe, F33 convertible and F36 Gran Coupe with the M Sport rear bumper, 2014–2020
• Choose your exhaust layout: two tips on one side, one tip on each side, or two tips on each side. Look at your car before ordering.

Does not fit

• Base or Luxury Line rear bumpers
• F82 M4
• Cars with aftermarket exhausts that don't match the factory layout

Material & finish

ABS plastic with an LED light. Choose gloss black, or carbon look (a printed carbon pattern, not real carbon fiber).

In the box

1 rear diffuser with LED light.

Install

Replaces the factory lower diffuser trim. The LED needs to be wired in, so professional install is recommended. Check local rules before wiring it as a brake light.

Shipping: Ships with tracking. Most orders arrive in 1–3 weeks.

Every part is direct fit, with no cutting. The product details above say how this one mounts: tape, clips or screws.

Before you peel any tape: test-fit the part, clean the surface with isopropyl alcohol, and install above 60°F so the adhesive bonds. Lips, splitters and diffusers take longer and may need small pilot holes, and LED parts need wiring, so we recommend a professional install for those.

Not sure it's right for your car? Message us your year and trim before you order.

Every order ships with tracking. Most orders arrive in 1–3 weeks. Parts marked "Ships from a US warehouse" usually arrive faster. Spoilers, lips and diffusers ship separately because of their size.

Fitment guarantee: if a part doesn't fit the car and years it's listed for, contact us before installing and we'll refund you.

See our Shipping Policy and Refund Policy for details.