Exterior Components› Body Panels and Components

ACS Composite

C7 Rear Diffuser Fins

$399.00

SKU: 45-4-097 CFZ

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 ACS Composite C7 Rear Diffuser Fins are a performance-oriented exterior component designed to enhance the rear valance of your Chevrolet Corvette. These fins stimulate airflow, reduce turbulent air at the rear, and improve undercarriage aerodynamics. They are painted in Carbon Flash Black for a seamless look and designed using OEM data for a perfect fit and finish.
Show original supplier description
The ACS Composite Rear Diffuser Fins are designed to upgrade the rear valance of your Chevrolet C7 Corvette, offering both enhanced aerodynamics and a refined aesthetic. Crafted from PC Composite, a material developed by ACS Composite, these fins are built to withstand minor impacts, scrapes, and heat distortion, making them three times stronger than ABS. The product is manufactured using OEM data to ensure a perfect fit and finish, and includes four fins, a template for precise placement, instructions, and necessary hardware for installation. While no installation video is currently available, detailed instructions are included. The fins are compatible with Coupe and Convertible/HTC models of the C7 Corvette lineup, including the Stingray (2014-2019), Grand Sport (2017-2019), Z06 (2015-2019), and ZR1 (2019).

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

BrandACS Composite
Part Number45-4-097 CFZ
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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