Exterior Components› Body Panels and Components

RW Carbon

Renn Style Carbon Fiber Rear Diffuser

$979.95

SKU: mercw21805

Special Order
Special Order
Ships in 4–6 weeks
Free Shipping over $200
$100 Minimum Order
30 Days Return
INSTALL DIFFICULTY
DIY PRO SHOP

Moderate — 2–4 hours

Overview

The RW Carbon Renn Style Carbon Fiber Rear Diffuser is designed to give your Mercedes W218 CLS63 an aggressive rear-end appearance. This diffuser incorporates styling for the rear and replaces your existing plastic diffuser, utilizing some OEM mounting locations for a secure fit.

Constructed from genuine 2x2 carbon fiber and finished with a clear coat, this diffuser is easy to clean and resistant to the elements.
Show original supplier description
Obtain an aggressive rear-end appearance for your 2012-2018 CLS63 with this RW Carbon Renn Style Carbon Fiber Rear Diffuser. This CLS63 rear diffuser incorporates aggressive carbon fiber styling for the rear. It takes the place of your existing plastic diffuser, reusing some OEM mounting locations to create a more secure fit. The diffuser is constructed from genuine 2x2 carbon fiber and finished with a clear coat, making it easy to clean and resistant to the elements. This part is an awesome upgrade for your W218 CLS63, whether you are looking for a unique exterior piece or already have a carbon exterior theme. Installation of this rear diffuser is recommended to be performed by a professional. Removing the rear bumper is highly recommended for proper fitment. The installation process is involved and requires screws and drilling. Please test fit and clean the applied area before installation. This rear diffuser is compatible with the 2012-2018 Mercedes Benz W218 CLS63 AMG and the 2012-2018 Mercedes Benz W218 CLS550 with the Sports Package (Sedan and Wagon). RW Carbon is not affiliated with RennTech.

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

BrandRW Carbon
Part Numbermercw21805
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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