MP Performance Style Black Rear Bumper Diffuser For BMW 3 Series E92 Coupe 07-13. Note: Fit models with M-Sport rear bumper only. The rear end of a car underbody is where a diffuser is usually located. It accelerates the velocity of the airflow underneath the car to create downforce. The pressure under the car is affected by the diffuser so that it can expand back to ambient in the diffuser, as the car moves forward, such that the pressure decreases while the velocity increases. Since the pressure below the car is lower than on the side and above the car, downforce is produced if implemented correctly. The diffuser “drives” the underbody, which produces the downforce. Performance Style Rear Diffuser -Black finish. Rear dual muffler cutout. Made of durable Polypropylene. What’s in the box. 1 x Rear Bumper Diffuser. What you might need for installation. Installation manual is not included. Installation hardware is not included. Professional installation is highly recommended. Monday to Friday only (excluding Holidays). We are not responsible for carrier transit time. This information is provided by the carrier and excludes weekends and holidays. Designated trademarks and brands are the property of their respective owners. 304090 / SKU: 2-DIFF-BME92MP-J3 / TITLE: MP Performance Style Black Rear Bumper Diffuser For BMW 3 Series E92 Coupe 07-13. The item “MP Performance Style Black Rear Bumper Diffuser For BMW 3 Series E92 Coupe 07-13″ is in sale since Tuesday, November 24, 2020. This item is in the category “eBay Motors\Parts & Accessories\Car & Truck Parts\Exterior\Bumpers & Parts”. The seller is “advanation” and is located in Rowland Heights, California. This item can be shipped worldwide.
- Brand: ADV
- Other Part Number: Upgrade Conversion Replacement Rear Bumper Lip Body Kit Moulding
- Warranty: 90 DAY
- Interchange Part Number: Bottom Black Lower Diffuse Under Body Downforce Trim Valance
- Color: Black
- Fitment Type: Direct Replacement
- Note: Fit models with M-Sport rear bumper only
- Manufacturer Part Number: 07 08 09 10 11 12 13 2013 2012 2011 2010 2009 2008 2007 M-Sport
- MPN: 304090
- Material: Polypropylene
- Installation instructions: Not included
- Placement on Vehicle: Rear, Lower