BMW Street Dial Indicator Tools

Decode, ID, and upgrade your GM 12-bolt rear end. Learn axle specs, gear ratios, and best performance parts upgrades.

The benefit of using adjustable shocks and why the CSI cockpit shock adjuster assembly is the most precise on the market. Find out more on how this product works and why it's important to fine tune your shocks at the track.

AllStart Battery Chargers are easy to use and very convenient. Read about how it helped our very own Betsy Grindlay and why everyone should have one.

Learn how to use a windshield remover tool to assist with in-depth builds. A step-by-step guide to windshield removal.

Obtain the perfect tire fitment on your ride with the WheelWise Tire Fitment Tool

Learn the importance of maintaining the right pressure in your tires for longer wear, enhanced handling and to get better fuel economy.

Directions on how to properly mock up your ride height using Speedway Motors coilover shock ride height mockup tool. See tips on positioning the links and brackets correctly.

Use our Brake System diagram to help with your street rod brake system project. We also diagram both single flare and inverted double flare fittings for you.

Our side mirrors with LED turn signals are a quick upgrade you can make to your car to set it apart.

Learn how to hook up a horn button in your vehicle. Watch our video on the install of an Ididit car horn button and our video on turn signal synchronization.