CSI, Modified Parts

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

Explore multi-link rear suspension upgrades, from 3-link to 4-link kits. Find out how a 4-link suspension improves traction and ride quality.

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!

Team Speedway, will showcase their G-Comp line of suspension at the Sturgis Camaro Rally on June 23-26.

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.

Street Rod Tech Steve L. talks about the need to be able to service and adjust the shocks on your vehicle, no matter the competition you built it for.

Adjustable suspensions allow for big changes to a car's stance and handling characteristics, but it's important to understand some suspension tuning principles before making big changes to the suspension under your custom or race car.

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!

These days, muscle cars aren't just for straight line blasts down the dragstrip. Here's a primer on some of the trick hardware that's available to make your muscle car into a corner carving Pro Touring car that can do it all.

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!