Aero, Sport Mod Parts

Dirt modified racing delivers high-horsepower, adrenaline-fueled action, learn more about them and their racing classes

Expert techs Austin and Pat talk about some of the race car body parts we have to offer and the aerodynamic benefits they can add to your modified.

Learn a few tips on how to properly mount Modified bodies and some products that will help get your race car body fabrication job done!

Explore dirt stock car racing’s key terms, classes, rules, parts, and tips for success in this ultimate guide for new competitors.

In order to be competitive and win, it's important to find the right set up that works for you and your car. Here's some general reminders to remember during set up!

Devyn Peterson is an Auto Tech in the Speedway Motors Customer Experience center. He's also a racer, starting out in karts when he was just 5 years old. He moved up to a Modified when he was 13 and hasn't looked back!

Learn what goes into setting the fuel for your engine and how to change the density altitude, ADR, main pill and high speed pressure to optimize a/f ratio.

Pat shows how his air ride is setup in his 1964 Impala.

Pat gives a brief overview of air ride and parts we have to offer for air ride.

This article demonstrates how to install a complete Winters quick change kit with additional parts including birdcages, brackets, and calipers for a modified race car.