Spanning 70 inches, the GTC-500 is the largest aftermarket adjustable wing available. With its optimized 3D airfoil shape, the GTC-500 is perfect for high speed touring applications and supplies an ample amount of downforce without causing excess drag. Mounting bases cover stock spoiler holes. Click on "More Images" icon for additional photos/spec sheet. Price includes shipping to any address in the continental USA.
- Optional Gurney Flap $95
- Optional 2 or 3" Risers $85
APR Performance's newest addition to the GTC Series is the GTC-500 Carbon Fiber Adjustable Wing. Spanning 70 inches, the GTC-500 is the largest aftermarket adjustable wing available. With its optimized 3D airfoil shape, the GTC-500 is perfect for high speed touring applications and supplies an ample amount of downforce without causing excess drag.
All GTC Series wings feature an aerodynamic 3D designed airfoil shape to obtain the optimal balance of downforce. This design allows for a reduction in drag, yet maintains an ideal level of downforce. Computational Fluid Dynamics (CFD) analysis was performed on this wing to support validation of its aerodynamic design. The results of this analysis are available here.
Each GTC Series airfoil is composed of lightweight and durable carbon fiber composite. Supporting the carbon fiber airfoils are 10mm "aircraft grade" 6061 billet aluminum pedestals that come in a flat black powder coat finish.
Center section to outer section angle difference: 10 degrees
Click here to see some guidelines regarding where to set the wing angle. The example shown in this link is for the GTC-300, but the same concepts also apply to the GTC-500 and GTC-200.
Gurney Flaps
Gurney flaps are now available for all of APR's GTC-series (200/300/500) wings. These are super lightweight, made in carbon fiber using the pre-pregnated carbon process, and conform perfectly to the contours of the GTC-series 3D airfoils. They are easily attached using the included double-sided tape.
The Gurney flap (a.k.a. wickerbill) is an aerodynamic device that was originally pioneered and developed in the 1970s by a racing driver named Dan Gurney. Unbeknownst to his competition, this device was used to increase downforce while minimizing increase in drag. He found that not only did this device increase the lift/drag (L/D) ratios, it also increased the stalling angles (so he could operate the airfoils at greater pitch angles). It took a few years for everyone else to catch on to its purpose, and now, the Gurney flap (or similar device) can be seen in race cars and even airplanes all over the world.
Recommended Vehicle Type:
Sports Car or Widebody
Circuit Method:
Top Speed
Average Track Speed:
Up to 180 mph (290 kph)