RKP
RKP - Carbon Fiber Rear Diffuser - BMW F8X M3 & M4
We apologize, at this time we currently do not ship outside of the continental U.S.
RKP’s F8X diffuser follows the same guiding philosophy RKP has pursued throughout their tenure as a manufacturer - provide race inspired parts with excellent fit, and fantastic weight and rigidity. The diffuser is built by hand from pre-preg carbon fiber, is available in plain (1x1) or twill (2x2) weave, and like all RKP parts boasts flawless fit and finish.
While the majority of the F8X M car is stunningly muscular, the diffuser section in particular leaves something to be desired. The flat polyurethane insert installed from BMW does not match the M3/4’s aerodynamically sculpted exterior, and so was the first item RKP elected to attack. In contrast, the RKP diffuser was designed with full length fins that reach all the way from the inside of the insert to their termination point at the rear of the bumper. The fins are particularly thin, and although this makes them especially difficult to manufacture, their athletic appearance is more purposeful and athletic. Unlike the BMW performance diffuser, RKP’s fins extend all the way to the edge of the diffuser, giving them a much more noticeable look in all of the right areas.
The RKP M3/4 diffuser has been in development for over 3 months with a specific focus on fit and finish. After several revisions, we have carefully sculpted what we believe to be a truly perfect fitting part. This was no easy feat, as working with the complex rear bumper shape and creating a component that would be durable, strong, lightweight, and integrate perfectly with the original BMW mounting took special care and attention to detail. We are proud to say that this diffuser fits like all other RKP components- absolutely flawlessly.
Features:
- 1x1 or 2x2 carbon fiber construction
- Integrates into the rear bumper's OEM design
- 100% reversible with no drilling or modification required
- Custom paint optional
Models Supported:
BMW F8X M3 & M4
WARNING: May contain items that are found to have compounds and/or chemicals known to the State of California to cause cancer, birth defects, and reproductive harm.
For more info, please visit https://www.P65Warnings.ca.gov.
Product information
F.A.Q.
They appreciate cut and details, things that aren't so obvious.
What payment methods can I use?
We offer 35 different payment methods including major providers like Mastercard, Visa, PayPal, American Express and Diners as well as many different local payment methods including Klarna, iDEAL, AliPay, Sofort, giropay, and many more.
Can I purchase items with another currency?
Yes, you may select a currency based on your personal preference. When you select your country in the country selector on the upper right of the website or are taken directly to your country’s version of the website, you will see prices listed in the regional currency.
Can I make changes to my order after it’s been placed?
We do everything we can to fulfill orders quickly and unfortunately cannot make updates after an order has been placed. These changes include removing or adding products and/or changing the delivery address. If a mistake has been made with your order information, it’s quickest to create a new order with the correct information and then let our Customer Service.
Do you offer e-gift cards for international customers?
E-gift cards are only available to customers shipping within the U.S.
How Do I Set Up A Subscription Order?
We will deliver products to you as soon as reasonably possible. Orders are usually dispatched between 1-3 days from the date of the order being placed. Please contact us our customer service team if your delivery has not been received within the dates described.
How To Return My Items?
We do not currently offer free returns to overseas customers. You will therefore need to cover all costs of returning any items to us yourself. We advise that you mark your package ‘returned goods’ to avoid further duties. Remember: We strongly recommend that you return any items via a registered trackable service and obtain and retain proof of posting as we do not accept responsibility for items that fail to arrive with us.