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Upgrade the rear aerodynamics of your 2005–2009 Ford Mustang S197 with the APR Performance GTC-300 Carbon Fiber Adjustable Rear Wing. Designed for motorsports, track use, time attack builds, and high-performance street applications, the GTC-300 delivers substantial rear downforce while maintaining excellent aerodynamic efficiency.
The GTC-300 features a Computational Fluid Dynamics (CFD) developed airfoil profile engineered to improve rear-end stability while minimizing unnecessary drag. Its cambered airfoil creates an effective pressure differential between the upper and lower surfaces, helping maintain airflow attachment and generate consistent downforce at higher speeds.
With a fully adjustable 0°–15° angle of attack, drivers can fine-tune the wing for different tracks and driving conditions. Higher angles increase rear downforce for improved traction, cornering, and braking stability, while lower settings reduce aerodynamic drag for improved straight-line performance.
Constructed from autoclave-cured pre-preg woven carbon fiber and supported by aircraft-grade 6061 billet aluminum risers, the GTC-300 combines lightweight construction, exceptional rigidity, and functional aerodynamic performance.
Important Fitment Note
Fits 2005–2009 Ford Mustang S197 applications.
The vehicle-specific mounting bases are positioned near the outer edges of the trunk lid.
Please verify your trunk and existing spoiler configuration before installation.
Key Features
CFD-Developed Airfoil Design Engineered using Computational Fluid Dynamics to generate substantial rear downforce while minimizing drag.
Adjustable 0°–15° Angle of Attack Allows drivers to fine-tune the aerodynamic setup based on vehicle balance, track configuration, and driving conditions.
8.8:1 Downforce-to-Drag Ratio Optimized to provide strong rear downforce while maintaining aerodynamic efficiency and minimizing unnecessary drag.
Autoclave-Cured Pre-Preg Carbon Fiber Constructed from pre-impregnated woven carbon fiber and autoclave cured in aluminum billet molds for excellent rigidity, durability, and strength-to-weight ratio.
Aircraft-Grade Billet Aluminum Risers Uses high-strength 10mm 6061 billet aluminum adjustable risers for secure mounting and precise aerodynamic adjustment.
Vehicle-Specific Mounting Carbon fiber bottom plates provide a vehicle-specific mounting solution for the S197 Mustang.
Track-Focused Performance The mid-to-large GTC-300 design provides substantial aerodynamic performance without the more extreme aero load of APR's largest wing designs.
Specifications
Wing Span: 61" or 67" (1549 or 1702 mm)
Chord Depth: Variable, 10"–12" (254–304.8 mm)
Height: Variable, up to 13" (330.2 mm)
Angle of Attack: 0°–15°
Downforce-to-Drag Ratio: 8.8:1
Wing Construction: Pre-preg woven carbon fiber
Risers: 10mm aircraft-grade 6061 billet aluminum
Vehicle-Specific Mounting Plates: Carbon fiber
Vehicle Fitment
2005–2009 Ford Mustang
S197 chassis
Special Note: Mounting bases sit near the outer edges of the trunk lid.
Optional Carbon Fiber Gurney Flap
An optional Carbon Fiber Gurney Flap is available for additional aerodynamic performance. Mounted along the trailing edge of the airfoil, the Gurney Flap helps increase downforce and reduce airflow separation for additional rear grip during high-speed cornering.
Height: 1/2" (12.7 mm)
Construction: Pre-preg woven carbon fiber
Attachment: 3M VHB double-sided tape
Why Choose the APR Performance GTC-300?
The GTC-300 sits between APR's smaller and more extreme rear wing designs, making it an excellent option for Mustang owners looking for significant functional downforce without moving to an oversized aero setup.
I have added a ton of pieces on the interior, from the console, waterfall, speakers, door, overhead, garage buttons and the steering wheel which I highly recommend. My car is six years old and the oyster gray isn't holding up or able to clean up, so these pieces really dressed up my interior to the next level or two! Thank uou Carbonaddons!!!!
Fast service. High quality. Easy installation. Followed reviews and recommendations to test fit and heat the adhesive first. Next plan is for a splitter and door side skirts!
The first photo is the before, the second is the passenger side that looks great. Where I am disappointed in is the drivers side, if you look at the top it does not cover the original completely at the top and some of the silver shows thru. A fraction more carbon material and it would be great. That is disappointing and why I only rated it as 3 stars.
Swapping the buttons and wiring over from the stock steering wheel takes some patience, but the finished look is absolutely worth it. This F1-style wheel from Carbon addons gets A LOT of attention at car shows and really stands out in my C8. Haven’t seen anyone else with one… YET! 🤞
Ordering from Carbon Addons has been a thrill ride for my cars. You guys rock!! Keep up the hard work and dedication to your customers. Oh and your car air freshener is awesome! Love the manly smell.
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