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Flow Designs Australia

4.5 (123)

GT Mustang S550 FN Flow-Lock Rear Diffuser

Name: Flow Designs Australia GT Mustang S550 FN Flow-Lock Rear Diffuser - GT Mustang S550 FN Flow-Lock Rear Diffuser
Brand: Flow Designs Australia
SKU: 46120933589209
Price: 287.0 USD
Availability: InStock
Rating: 4.4286 (6 reviews)

4.5 (1,234)

Sold 100+ last 30 days

20% off first order

$287.00

Quantity

Color

Black

Quantity

Description

Suits 2018+ Ford Mustang GT S550 FN INSTALL DOES NOT REQUIRE REAR BUMPER REMOVAL For rear valance without Flow-Lock fins click here.

Details Experience Flow-Lock rear diffuser for your Mustang S550 FN, sharing the same durability and tec...

Reviews

4.4

7 ratings

Rear Diffuser

Easy install and looks awesome with a nice aggressive look. Only problem I had was a loose fin on both sides. Easy fix, I used the tip of a black cable tie and slid it along side of fins and snipped tie off. You cannot see it at all and the fins are solid as now. Great quality product.

Wayne · December 25, 2025

Amazing Quality

No complaints with this product. Looks great, feels sturdy and made to last, install was a breeze. The rear looks more aggressive and the fins dont look to obnoxious like some other rear diffusers. Super happy with how it turned out.

Andrew · July 19, 2023