Exterior Components› Body Panels and Components

Kies Motorsports

M Performance Style Rear Diffuser

$248.00

SKU: KMSF30PP-MPRD-328

In Stock
In Stock
Ships by Sep 12
Free Shipping over $200
$100 Minimum Order
30 Days Return
INSTALL DIFFICULTY
DIY PRO SHOP

Easy — 1–2 hours

Overview

The Kies Motorsports M Performance style rear diffuser is a non-carbon exterior component designed for the F30 BMW 3 Series. It offers an aggressive aerodynamic look, replacing the standard M Sport diffuser.
Show original supplier description
The Kies Motorsports M Performance style rear diffuser is designed to enhance the exterior aesthetics of your F30 BMW 3 Series. This non-carbon fiber component provides an aggressive, aerodynamic look, directly replacing the standard M Sport diffuser. It is compatible with various F30 models including the 320i, 328i, 335i, 330i, and 340i, as well as xi and diesel variations. The diffuser also fits the F31 wagons. Crucially, this rear diffuser requires that your vehicle is already equipped with the M Sport rear bumper. It will NOT fit base model bumpers. If your vehicle does not have an M Sport rear bumper, Kies Motorsports offers conversion kits to adapt your vehicle. Kies Motorsports emphasizes quality, fitment, and durability, using materials such as polypropylene thermoplastics, which are known for their high durability and flexibility, similar to OEM manufacturing standards. Although DIY installation is possible, professional installation by an experienced body shop is highly recommended for optimal results.

Product descriptions are provided by our supplier partners and may not always be perfectly accurate. Not sure this fits? or call (760) 282-4645 and we’ll verify before you order.

Fitment

Fitment Guaranteed

Don’t gamble
on fit.

Log your build in the MOTORMIA app and we’ll guarantee this part fits your exact setup — or your money back, return shipping covered.

Available on iOS & Android

Specifications

BrandKies Motorsports
Part NumberKMSF30PP-MPRD-328
CategoryExterior Components

We’re here — turning wrenches, just like you.

Call us, follow along, or come say hi.

(760) 282-4645 Instagram Google

Buy with Confidence

Returns & Fitment

Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.

View Full Return Policy

Shipping

Orders are processed in 1–3 business days. In stock parts ship promptly from our partner network. Special-order items either aren’t currently stocked or are built to your spec — expect 4–6 weeks. If a part goes on backorder while your order is in the queue, we’ll reach out and work through discounted alternatives together.

Free shipping over $200 in the continental US. Alaska, Hawaii, U.S. territories (Puerto Rico, U.S. Virgin Islands, Guam, American Samoa, and the Northern Mariana Islands), and international orders carry surcharges — most appear at checkout. Some exceptions (LTL freight, or suppliers who quote freight only after we place the order) won’t. In those cases we’ll reach out with the exact charge before your order moves forward.

View Full Shipping Policy