Exterior Components› Body Panels and Components

Canadian Auto Performance

RS Style Rear Diffuser

$599.99

SKU: CAP-BD-010

In Stock
In Stock
Ships by Sep 9
Free Shipping over $200
$100 Minimum Order
30 Days Return
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Moderate — 2–4 hours

Overview

The Canadian Auto Performance CAP-BD-010 is a rear diffuser designed for the 2020-2025 B9.5 Audi S4. It features an RS style with oval exhaust tips and a gloss black finish.

This diffuser aims to enhance the aggressive look of your Audi's rear profile, providing a bold, sporty, and performance-inspired aesthetic.
Show original supplier description
The Canadian Auto Performance CAP-BD-010 is a gloss black RS Style Rear Diffuser specifically designed for the 2020-2025 B9.5 Audi S4. This aftermarket part enhances the vehicle's aesthetic with its aggressive styling and integrated RS-style oval exhaust tips, aiming to provide a bold, sporty, and performance-inspired rear profile. The diffuser features a durable gloss black finish, contributing to its aggressive appearance and ensuring it stands out on the road. The product is designed to complement the Audi S4's existing lines while adding a distinctive touch. Installation requires professional expertise, as the rear bumper must be removed. Furthermore, a technician experienced with exhaust work is needed for the exhaust tips, as modifications to the existing exhaust system are necessary. This diffuser does not support the foot sensor feature. Important Note: This rear diffuser is exclusively for the 2020-2025 B9.5 Audi S4. It DOES NOT fit the 2020-2025 B9.5 A4 Non S-Line or A4 S-Line models.

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

BrandCanadian Auto Performance
Part NumberCAP-BD-010
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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