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Exterior Components› Body Panels and Components

Kies Motorsports

Rear Diffuser

Name: Rear Diffuser
Brand: Kies Motorsports
SKU: KMSG20PP-MPRD-330

$248.00 $198.00 Save $50.00

SKU: KMSG20PP-MPRD-330

Free Shipping over $200

$100 Minimum Order

Non-Returnable Item

DIY PRO SHOP

Moderate — 2–4 hours

Overview

The Kies Motorsports rear diffuser is a performance-inspired upgrade for the 2019-2022 BMW G20 3 Series sedans. This includes the 330i, 330e, diesel variants, and M340i models.

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Introducing the Kies Motorsports performance-inspired rear diffuser, designed to enhance the aesthetic of your 2019-2022 BMW G20 3 Series sedan. Constructed from durable, mold-injected thermoplastics, this diffuser offers a sporty, aggressive look. This rear diffuser is specifically designed for G20 BMW 3 Series sedans equipped with the factory M Sport package, including the 330i, 330e, diesel variants, and M340i models. It is crucial to note that this diffuser does NOT fit the standard bumper; a factory M Sport package or an aftermarket M Sport conversion is required for proper fitment. For customers with a 330i attempting to install an M340i style diffuser, an OEM rear bracket (Part # 51128079607) and angular exhaust tips will be necessary for successful installation, as it is not a direct replacement. The M Performance style rear diffusers come in a matte black finish, ready for installation as-is or for custom painting. While DIY installation is possible, Kies Motorsports highly recommends professional installation by an experienced body shop to ensure optimal results. The company is not responsible for labor practices or outcomes.

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

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Specifications

Brand	Kies Motorsports
Part Number	KMSG20PP-MPRD-330
Category	Exterior Components

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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.

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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.

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