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Subaru STI GTC-300 Carbon Fiber Adjustable Wing 2015-2021 (STI only)

$2,527.00 USD
Item is in stockHurry! Low inventoryItem is out of stock Item is unavailable

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SHIPPING - RETURNS - WARRANTY - CANCELLATION POLICY

*** Market Conditions after 2020 have changed the landscape of automotive parts. Although we try to stock 1000's of items in our multiple warehouse and use multiple distribution channels, having back-orders are unavoidable in today's market. If you are in need of a product quickly, we suggest email, message, or call us for availability so that we may explore your options.
Email: Sales@Speedzoneweb.com
Call: 407-846-8430
Text: 407-749-6314

Frequently Asked Questions


Brand:APR Performance
SKU:AS-106166PPF
Manufacturer Part Number:AS-106166PPF

This item is made to order, normal lead time is 1-2 weeks. Contact sales team at sales@aprperformance.com or 909-590-3796 for additional info. 

APR Performance GTC-300 Adjustable Wing

The APR Performance GTC-300 Adjustable Wing is a high-performance aerodynamics component designed to optimize the aerodynamic balance of performance vehicles, primarily in motorsports and track applications. Engineered for high-efficiency downforce generation with minimal drag, the GTC-300 is tailored for cars seeking improved cornering, braking stability, and high-speed balance.

Specifications:

· Span: 61” or 67” (1549 or 1702mm)

· Chord Depth: Variable, 10"–12" (254mm – 304.8mm)

· Height: Variable, up to 13" (330.2mm)

Key Technical Features:

1. Airfoil Design:

· The airfoil profile of the GTC-300 is engineered for high-efficiency downforce generation with an emphasis on minimizing drag. The airfoil's shape has been rendered through Computational Fluid Dynamics (CFD) to provide balanced performance by improving rear-end stability without excessive drag penalties.

· The cambered design aids in creating an effective pressure differential across the upper and lower surfaces, maximizing airflow attachment and minimizing flow separation, especially at high speeds. (CFD data available)

2. Adjustable Angle of Attack:

· The GTC-300 features a fully adjustable angle of attack, allowing precise tuning of the wing’s aerodynamic properties. This adjustability enables the user to customize the downforce and drag characteristics based on specific track conditions, vehicle dynamics, and performance requirements.

· The angle of attack can be adjusted within a range of 0° to 15° to cater to varying aerodynamic needs. Higher angles increase downforce for enhanced cornering and braking, while lower angles reduce drag for improved straight-line speed

3. Aerodynamic Efficiency and Performance

· The wing's shape and construction have been optimized to achieve an 8.8 to 1 downforce-to-drag ratio, where the generation of downforce remains high, but drag is kept to a minimum, allowing the vehicle to maintain high levels of cornering stability without sacrificing straight-line speed.

· The ability to adjust the wing's settings allows users to quickly adapt to different circuit conditions, from tight, technical corners requiring high downforce to high-speed straights demanding minimal drag.

· Please refer to Lift vs Drag coefficient graph

4. Downforce and Drag Characteristics:

· When set to higher angles, the GTC-300 generates significant downforce, increasing the vertical load on the rear tires, improving traction, and enhancing cornering capabilities.

· At lower angles of attack, the wing minimizes drag, reducing aerodynamic resistance, which improves top speed for circuits that demand high-speed performance or straight-line acceleration.

5. Carbon Fiber Construction:

· The wing is constructed from pre-impregnated woven carbon fiber sheet, ensuring both lightweight performance and exceptional strength-to-weight ratio. Carbon fiber's natural rigidity prevents flexing at high speeds, maintaining consistent aerodynamic performance even under heavy aerodynamic loads.

· The use of autoclave-cured carbon fiber in aluminum billet molds ensures optimal material density, high durability, and resistance to heat and stress-induced deformation.

6. Pedestals and Mounting:

· The wing is mounted via angle adjustable risers made from high-strength 10mm aircraft-grade 6061 billet aluminum, which provide options for fine-tuning the wing's height and position relative to the vehicle. These risers allow for precise control of airflow and downforce distribution at different ride heights.

· The adjustable mounting system provides users the flexibility to fine-tune the aerodynamic setup for specific track conditions, ensuring maximum performance under various driving circumstances.

7. Compact Size and Versatility:

· The GTC-300 is engineered as a mid-to-large-sized wing, striking a balance between downforce and drag for vehicles that don’t require the extreme aero load of larger wings like the GTC-1000.

· Its compact yet performance-oriented design makes it well-suited for track cars, time attack builds, and street-tuned vehicles seeking enhanced stability and cornering performance without excessive drag penalties.

· The wing’s dimensions allow for seamless integration across a broad range of vehicles while still delivering substantial aerodynamic benefits.

8. Vehicle Fitment and Customization:

· The GTC-300 is designed for both vehicle-specific fit and universal fitment. APR Performance provides customizable fitment kits to ensure secure installation on most racing or high-performance street vehicles.

· Mounting is achieved using carbon fiber bottom plates for vehicle-specific fitment and aluminum bottom plates for universal fitment.

· Ideal for mid-to-large performance cars or track-dedicated vehicles that frequently operate on high-speed circuits.

Optional Gurney Flap:

Available for added aerodynamic performance. When mounted on the trailing edge of the airfoil, the Gurney Flap increases downforce and reduces flow separation, further enhancing grip in high-speed cornering.

o Height: 1/2in (12.70mm)

o Construction: pre-impregnated woven carbon fiber

o Attachment style: 3M VHB double sided tape

Special Note: Mounting bases cover factory spoiler/wing holes.



Our History

For 23 years Speedzone Performance LLC has been providing aftermarket car parts to Central Floridians and 1000's of customers online. What makes us different than all the other places online? We have 3 actual brick and mortar locations where were serve customers daily and find new ways to provide support and assistance to the automotive community at large. From our in house SPDZ1 Brand, to our constantly growing in stock inventory, we strive to make our customer service and ease of purchase stand out from the rest! We are also one of the largest automotive part financing providers anywhere in the United States, and continue to provide more options for our customers every year. We love what we do, and it shows in every product we sell and every new customer who becomes a part of our Speedzone Family.

Our Florida Locations

Testimonials

We let our reviews speak for themselves.

4.9 average
914 reviews

Kissimmee

Orlando

Tampa

Great service at a fair price. I highly recommend them for all your performance needs. They have the know how to complete that project.

Donald Berry

Happy Customer

Google Review

Dropped off my 2022 Subaru WRX for Exhaust, spoiler, aeroflow dynamic kit, and they killed it. Quality work and amazing customer service. Speedzone gets you right.

Edward Roldan

Happy Customer

Google Review

They gave me the best price I could find after shopping around for a while. They are well informed and familiar with the products they sell, great communication and quick responses. I would no doubt purchase from them again. Solid company. Recommended. A+

Paul K

A Month Ago

Google Review

Came based on a work buddies recommendation. I was late by 30 minutes, confused my appointment time. But, 10/10 would come back. Came for a Downpipe and midpipe install. Not only was the gentleman accommodating, He ran into some issues, staff helped me out and pointed me into the right direction and got me going! They got my business and wouldn’t go anywhere else again!

Kiyo Gallimore

Verified Customer

Google Review

They Take Great Care Of Their Customers and Their Rates Are Better Than The Competition! They Also Respond Quickly And Have A Great Assortment Of Parts!

Jad

6 months Ago

Google Review

Absolutely love the customer service that you get with Speedzone Performance! All my questions are always answered in such a timely manner and this a big PLUS because I live out of Florida and for them to be on top of answering all my questions in such a way means a lot. Thank you all for the amazing customer service.

Daisy Vargas

Verified Customer

Google Review

My favorite place to go for anything car related, they have anything you could imagine & more. The people who work here are the coolest and most helpful people I’ve yet to meet at a car shop. They also don’t try to force sales on you and they genuinely help you with what you’re looking for, 100/10 shop!

Stephanie Trinidad

Loyal Customer

Google Review

The best of best, they are so nicely and kind people, yankee and billy more than the ones that runs the store they are a friend to everyone who walks in the store, very patient gets everyone what they need, everything you ask them they’ll answer your questions the best as possible, I love shopping there. They have the best prices, anything as car need you’ll find it there big shout-out to Yankee for being an amazing person and most important as a friend!! I love Speedzone!

Jansel Castillo

Loyal Customer

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