Spanning up to 71 inches over its optimized 2D airfoil shape, the APR Performance GTC-250 Adjustable Wing supplies maximum downforce in widebody sports and touring car applications.

GT-250 Dual Element

GT-250 Dual Element


  • REAR


Pattern2x2 twill weave
MaterialPre-preg carbon fiber, 3K
CoatingUV-stable clear coat
Wing measurementCustom span Up to 71", 10" chord
HardwareStainless-steel machine screws, washers, and nuts
Mounting6061 billet aluminum brackets/pedestals with application-specific bottom mounting bases


The APR Performance GT-250 Adjustable Wing features a 2D airfoil shape that is designed to produce great downforce with minimal drag.

The GT Series airfoil is composed of lightweight and durable pre-preg carbon fiber composite materials for superior strength and low weight.

Side plate angles are easily adjusted using the included stainless-steel hardware.

Supporting the airfoils are 10mm "aircraft grade" 6061 billet aluminum pedestals that come in a flat black powder coat finish.

Computational Fluid Dynamics (CFD)

Modeled in 3D and validated using Computational Fluid Dynamics (CFD), the APR Performance GT-250 Adjustable Wing is designed to adapt to a variety of widebody sports and touring car applications.

CFD Data for the GT-250 Adjustable Wing (Click to View)


Contained herein are the data and results of the Computational Fluid Dynamics (CFD) analysis that was conducted on the GT-250 airfoil. This data illustrates how the airfoil performs in different conditions by comparing Downforce vs. Angle-of-Attack (AOA) vs. Speed, and Drag vs. AOA vs. Speed. This data will provide insight with regards to how and how much the airfoil performs with respect to these conditions.

To learn how to interpret and apply this type of CFD data, see sample analysis on the GTC-300 page.

The information contained herein is property of APR Performance, and may not be reproduced in whole or in part without prior written consent from APR Performance.

Gurney Flaps

Gurney flaps are included with every APR Performance GT-250 Adjustable Wing. These are super lightweight, made using pre-preg carbon fiber processes, and pre-attached using double-sided tape.

History of the Gurney Flap (Click to View)
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.


Vehicle-specific and custom applications are listed below.

Custom Applications: Universal Style (Click to View)

Custom pedestal-to-pedestal distance, built-to-order. Standard-height pedestals are used.



User assumes full responsibility for ensuring proper installation as intended. Professional installation by well-qualified personnel is highly recommended. The vehicle applications shown above are intended to work as a complete system when installed onto original vehicle body parts (i.e. trunk lids, hatches, etc.). To insure proper function and reliability, APR advises against modification or substitution of any component of the intended installation. Any modification or substitution of the airfoil, side plates, pedestals, mounting bases, mounting brackets, or hardware included with the wing kit may create unsafe operating conditions and ultimately cause this system to fail. Substitution of original vehicle manufacturer parts needed for the intended installation (i.e. rear trunk lid or rear hatch) with non-original parts may also create unsafe operating conditions and ultimately cause this system to fail.