Kies Motorsports 2008-2013 BMW E82 1 Series M1/1M Style Rear Bumper Quad Diffuser

Kies Motorsports 2008-2013 BMW E82 1 Series M1/1M Style Rear Bumper Quad Diffuser*If there is any damage to this product, Kies Motorsports must be notified within 48 hours of delivery.* As best practice when looking for a shop, you should ask to see results of their previous work. If they claim to be experienced but have no tangible evidence, we would recommend caution when taking your business there. Kies motorsports is NOT responsible for poor labor practices Elevate your BMW E82 1 Series' presence with the Kies Motorsports M1

More reinforcement

This means less down time and a great reduction in both assembly & shipping cost as well

Please remember that here at Kies Motorsports

but gives you Seqential fire of your injectors

991 and 992 Porsche 911

which allows you to connect to the APR Marketplace to purchase a tune for your vehicle

adjust idle speed

Make an additional 2 to 3 harder stops from approximately 40-45 mph

Tougher Inner Lip

User definable pre-scaler and post-scalers produce an accurate tach reading on virtually any engine

Dry Carbon vs "Wet" Carbon: Dry carbon and "wet" carbon differ in their manufacturing process

Our woofers are matched to the impedance of your factory woofers (we have different versions for each) to maximize performance and ensure the longevity of your factory amplifier