Dominate Competition, Still Street Legal.
For proven endurance and podium performance in autocross, road-racing and time-trials, yet capable of the occasional street use, choose a CorteX “Track” Suspension upgrade.
Pro-Level Results, DIY Ease
CorteX “Track” kits are can transform your ride into a new class of performance.
Our Xtreme-Grip™ aftermarket suspension systems are optimized for easy installation across vintage and new American Muscle, GT, and Pro Touring cars.

Xtreme-Grip™ Track Systems:
- Proven to carry loads of production-weight cars with sticky track tires
- Stiffer spring rates with superior handling and response
- Greater range of adjustment, with correct geometry

Compare Track vs. Street Systems
Generally, track suspension systems do not use rubber or poly bushing and rely almost entirely on spherical joints and rigid connections for reduced friction and deflection.
The professional engineers at CorteX Racing designed, tested and optimized our Xtreme-Grip™ Track suspension systems for maximum handling performance. As a result, ride comfort was not the primary goal for products in this track-day/ racing class category.
CorteX Customers Dominate on Track
Several Spec Racing Series have approved CorteX Racing Suspensions.
When our Mustangs can go wheel-to-wheel with supercars, we know we’ve got it right.
Spec Mustang SMG 2017 GT350R Spec Mustang SMG 2014 World Challenge CorteXracing.com Project Xecution 66 Mustang Build
Build Partner, Expert Support
Our team can help ensure you get the proper setup for how you intend to use your car. This starts with the right equipment and can continue with tech tips to dial in next-level handling – something big retailers can’t deliver.
As drivers first-most, we have engineered, manufactured and tested our systems first hand.
Pro Support
Depending on a variety of factors such as type of track events (autocross; road-course), the weight and power of your car, and your driving style our experienced engineers have optimized our systems to win.
Max Adjustment Design to Dial-in the Win
CorteX designs have a range of geometry adjustments for ease of optimizing performance.
We have years of track-side support in the hot-pits to know what matters.
Shop by Vehicle
The CorteX Racing online store has numerous other aftermarket motorsports parts so we can also recommend many other manufacturers’ products to complete your build.