Give your BMW 4 series the look of strength and stability with our rear diffuser bumper for dual exhaust. Developed to improve the cars aerodynamic properties and designed to preserve the captivating style of the M sport performance products.
We recommend using a professional fitter to achieve maximum product potential.
Screws/bolts not included.
Will fit BMW 435i and 440i with dual exhaust, or any other F32 F33 F36 4 series with M Sport rear bumper and wanting to carryout the 440i style exhaust conversion.
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We’re committed to providing top quality products and first-class customer service. We’re heavily involved in the manufacturing process and we test all new products on our own vehicles first, using our high expectations as a benchmark for every product that we sell.