Exterior Components› Running Boards, Truck Steps and Components

Maxton

Side Skirts Diffusers

$305.99

SKU: BM-Z4-89-SD1G

In Stock
In Stock
Ships by Sep 12
Free Shipping over $200
$100 Minimum Order
30 Days Return
INSTALL DIFFICULTY
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Easy — 1–2 hours

Overview

The Maxton Design side skirts diffusers are an exterior body enhancement for the BMW Z4 E89.
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The Maxton Design Side Skirts Diffusers are designed to provide a visual enhancement and improve the aerodynamics of your BMW Z4 E89. These diffusers are crafted from ABS plastic, a material commonly used in OEM automotive parts due to its impact and scratch resistance, as well as its shock absorption qualities. The product is treated with a UV protection coating and is TUV certified for material quality. Engineered with precision, Maxton Design utilizes 3D laser scanning technology to ensure a perfect fitment for each specific make and model. This attention to detail guarantees an OEM+ finish and a sharp, envy-inducing look for your vehicle. The package includes a mounting kit and a manual, and the product is ready for installation. However, if opting for the textured version, preparation work may be required before painting. Maxton Design highly recommends installation by professional auto body shops experienced in visual modifications. The side skirt diffusers are compatible with the BMW Z4 E89 models from 2009 to 2013, including the Z4 28i, 30i, 35i, and 35is submodels.

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

BrandMaxton
Part NumberBM-Z4-89-SD1G
CategoryExterior 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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