Exterior Components Body Panels and Components

Renntech

Carbon Fiber Rear Diffuser

$3,830.75

SKU: 88.197.20.80-RNTEC

In Stock
In Stock
Ships by Aug 31
Free Shipping over $200
$100 Minimum Order
30 Days Return
INSTALL DIFFICULTY
DIY PRO SHOP

Moderate — 2–4 hours

Overview

The RENNtech Carbon Fiber Rear Diffuser is a performance enhancement for the 197 - SLS AMG and 197 - SLS AMG GT.
Show original supplier description
The RENNtech Carbon Fiber Rear Diffuser is engineered to complement the front splitter and optimize the aerodynamics of the 197 - SLS AMG and 197 - SLS AMG GT models. Its primary function is to reduce drag and generate additional downforce by refining the flow of air beneath the vehicle and its exit into the ambient environment. However, please note that the installation of this rear diffuser will partially obscure the view of the rear backup camera. RENNtech offers an optional camera housing extension (Part # Aero:88.197.20.CAM) for those who wish to maintain the full viewing angle of the camera. Prepreg carbon fiber represents the pinnacle of carbon fiber manufacturing, offering a significant advantage over lower-cost wet-layup methods. This process involves pre-impregnating the fibers with resin, which is then frozen to prevent premature curing. The material is hand-laid into molds and cured under controlled temperatures, resulting in a laminate that is 20-30% stiffer and stronger than those produced with wet layup. This superior construction ensures that the components are not only visually appealing but also durable, resistant to cracking, warping, fading, and detachment, even at high speeds.

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

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Specifications

BrandRenntech
Part Number88.197.20.80-RNTEC
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.

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