APR Performance GTC300 61" Carbon Fiber Wing for 11-14 WRX / STI

APR Performance GTC-300 Adjustable Wing

Made to Order - UNLESS IN STOCK WITH US 
Typical lead time: 1–2 weeks

For pricing, availability, and fitment assistance, please contact:

KCG Motorsports LLC
📧 info@kcgmotorsports.com
📲 Instagram: @KCGMotorsports

The APR Performance GTC-300 Adjustable Wing is a high-performance aerodynamic solution engineered to improve rear-end balance in track and high-performance street applications. Designed for efficient downforce generation with minimal drag penalty, the GTC-300 enhances cornering grip, braking stability, and high-speed composure.

Specifications

• Span: 61” (1549mm)

• Chord Depth: 10”–12” (254mm – 304.8mm)

• Height: Adjustable up to 13” (330.2mm)

Key Technical Features

CFD-Optimized Airfoil Design

The GTC-300 features a Computational Fluid Dynamics (CFD) developed airfoil profile engineered to maximize downforce efficiency while minimizing aerodynamic drag. Its cambered design creates a strong pressure differential between the upper and lower surfaces, improving airflow attachment and reducing flow separation at high speeds for enhanced rear stability.

Adjustable Angle of Attack (0°–15°)

The fully adjustable angle of attack allows precise aerodynamic tuning:

• Higher angles: Increased downforce for improved braking and cornering performance

• Lower angles: Reduced drag for improved straight-line speed

This adjustability allows drivers to tailor performance to different track layouts and driving styles.

Aerodynamic Efficiency

Optimized to achieve an impressive 8.8:1 downforce-to-drag ratio, the GTC-300 delivers substantial rear grip without significantly compromising top-end performance. Ideal for technical circuits and high-speed tracks alike.

Downforce & Drag Characteristics

At aggressive settings, the wing significantly increases vertical load on the rear tires, improving traction and cornering stability. At lower settings, aerodynamic resistance is minimized, supporting higher top speeds and stronger acceleration.

Carbon Fiber Construction

Manufactured from pre-impregnated woven carbon fiber and autoclave-cured in aluminum billet molds, the GTC-300 offers:

• Exceptional strength-to-weight ratio

• High rigidity to prevent flex under load

• Long-term durability and resistance to heat and stress

Adjustable Pedestals & Mounting

The wing mounts using 10mm aircraft-grade 6061 billet aluminum risers with adjustable positioning. This system allows fine-tuning of wing height and angle to optimize airflow and aerodynamic balance based on ride height and track conditions.

Balanced Size & Application

Engineered as a mid-to-large sized wing, the GTC-300 strikes a balance between serious aerodynamic performance and manageable drag levels. It is well-suited for:

• Track builds

• Time attack vehicles

• High-performance street cars

Its dimensions allow broad vehicle compatibility while still delivering meaningful aerodynamic gains.