Exterior Components› Body Panels and Components

Fspe

Rear Diffuser V3

$735.00

SKU: M-FSPE-RSV3DIFF

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 FS Performance Engineering Rear Diffuser V3 is an aftermarket aerodynamic enhancement for the Ford Focus RS. This diffuser is manufactured from lightweight, aircraft-grade aluminum.
Show original supplier description
The FSPE Rear Diffuser V3, designed for the Ford Focus RS, is engineered to improve downforce and elevate the vehicle's aesthetic with a motorsports-inspired design. This rear diffuser is constructed from premium 5052 aluminum, precisely CNC laser-cut for a perfect fit and finished with a durable black powder coating. This V3 iteration features five vertical fins designed to enhance aerodynamics and promote high-speed stability. Included in the kit are FSPE rear side spats, which extend the aggressive body kit look around the entire vehicle. These spats also feature vertical fins that visually tie into the side skirts and front splitter, creating a cohesive and imposing stance. Beyond its aerodynamic benefits, the FSPE Rear Diffuser V3 adds a modern and aggressive visual element to the rear of the Ford Focus RS. The product offers custom trim color options, allowing for personalization to match the vehicle's style, with choices including Black, White, Silver, Dark Grey, Red, Dark Red, Blue, and Carbon Fiber. This diffuser is CARB approved and built to order, with a typical lead time of approximately 4 weeks. It is designed specifically for the 2016-2018 Ford Focus RS Hatchback 4-Door models equipped with the 2.3L 2300CC turbocharged engine.

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

BrandFspe
Part NumberM-FSPE-RSV3DIFF
CategoryExterior Components
5,000+ Trusted brands
1M+ Enthusiasts
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(760) 282-4645 hello@motormia.co

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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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