Roush Rear Spoiler Fastback 2015-2021

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Roush Rear Spoiler for 2015, 2016, 2017, 2018, 2019, 2020 and 2021 Fastback Mustangs.

Give your 2015-2021 Fastback EcoBoost, V6 or GT Mustang a sleek, race inspired look with this custom rear spoiler from Roush! Over the years Roush has continuously raised the bar when it comes to the aerodynamic styling found on their performance-oriented Mustangs and this piece is no exception.

For the complete RS line of S550 Fastback Mustangs, Roush has incorporated an aggressive, one-piece rear spoiler that sits beautifully off the back edge of the trunk lid to help accentuate the newly redesigned body lines of the 2015+ Mustang. Although entirely new, this redesigned spoiler carries over some iconic design cues from previous generation Roush Mustang rear spoilers for a timeless look. A unique notched-out style allows for maximum rear visibility when you need to check the competition behind you.

Features and Benefits:
- Aggressive, Motorsports-Inspired Styling
- Constructed from Durable, Lightweight ABS
- Engineered Using Computer-Aided Design for Perfect Fitment
- Unique, Functional Design for Optimum Rear Visibility
- Comes with Mounting Templates, Hardware and Heavy-Duty Self-Stick Tape

All of Roush's exterior upgrades, such as this Mustang rear spoiler, are precision engineered using CAD/CAM design and are manufactured with the same processes that some of the top automotive manufacturers use for OEM-quality fitment, durability and appearance. The Roush rear spoiler is constructed from durable and lightweight ABS plastic and is easy to install using the supplied hardware, automotive-grade double sided tape, instructions and available alignment template PDF Download ( (print at 1:1 Full Scale).

Tech Tip: This rear spoiler from Roush is available unpainted in a primered finish which is ready for test-fitting or painting prior to installation.

*Will NOT fit Convertible Mustangs.

Please Note: The Roush rear spoiler is not recommended for use as a replacement on Mustangs equipped from the factory with a rear spoiler. There will be exposed holes left in the decklid once the factory rear spoiler is removed and this spoiler is installed. Roush's spoiler is primarily designed for Mustangs with the factory spoiler delete option.

How well do you want your Mustang to look and perform? With any of the parts from Roush Performance, you can easily give it a major performance overhaul and add some visual styling that will truly make your S550 Mustang stand apart from the rest.

Installation Difficulty


Intermediate skill is required for this installation.

Installation Videos

Video Transcript

We’re here with Roush's rear spoiler fitter all 2015 Mustangs.

You can give your 2015 Mustang the race-inspired look of the Roush Mustangs with this custom rear spoiler. The rear spoiler is made of ABS and comes primed and ready to prep, paint, and install on your 2015 Mustang. It will require holes to be drilled for installation and does not cover up factory spoiler holes if you do have a factory spoiler.

The Roush spoiler is going to mount on the back edge of the trunk lid here. Roush includes a template for drilling the holes. It mounts with the provided hardware and double-stick tape. It's going to sit pretty much just like that when it's installed.

Vehicle Fitment

This product will fit the following Mustang years:

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