ABS Rear Diffuser Lip for BMW 4 Series F32 F33 F36 M Sport Doors Back (2012)

Fitted to the BMW 4 Series F32 F33 F36 M Sport Doors Back (2012), it hides the underside of the rear bumper and adds the motorsport look the standard car lacks.

Fits: BMW 4 Series F32 F33 F36 M Sport Doors Back (2012)

The mounting points line up with the factory lower bumper fixings on the BMW 4 Series F32 F33.

It fixes from underneath with the supplied screws and clips; removing the rear bumper is not necessary on the BMW 4 Series F32 F33.

The moulded finish is even enough to use as it comes, and the material will not corrode or dent the way a steel panel does.

If your car has a factory tow bar, the diffuser may need trimming around the mounting bracket.

This part ships ready for prep and paint, or usable as moulded. The same shape can also be produced in carbon fiber, forged carbon or fiberglass if you are building a set for a show car.

• Same part available in carbon fiber on request
• Set pricing when ordered together with other trim pieces
• Moulded finish for a dark car, or prep for body-colour paint
• Gloss black, satin black or raw grey finish

The shop floor is in Shishan, Nanhai – the composite cluster west of Guangzhou – and the same bench that runs this part also runs our OEM work for tuners and distributors.

Small runs are quoted per piece; above roughly 50 pieces the tooling cost is absorbed and the unit price drops, so ask for a stepped quote.

The packaging is built for a journey, not a shelf: foam wrap, corner protection and a double-wall carton, so the part arrives as it left the bench.

Wipe with a soft cloth and a pH-neutral cleaner; avoid solvent-based dressings, which can dull the moulded finish.

Because every piece is laid up to order, expect around two weeks in production before dispatch. Tracking is provided, and the 12-month warranty covers manufacturing defects such as de-lamination or a lifting clear coat.

In the box: diffuser, screws, clips and a fitment card.