DeSoto Battery Testers

Leaking engine cylinders is an important preventative maintenance test to do while racing. Learn the steps to perform this test and how to indicate proper engine tuning.

Testing a 2 or 3 wire speed sensor sounds difficult, but these videos show that it actually is quite easy!

Warranty information for DeWitts aluminum radiators.

Learn how durometers can help you select the best tires from a new stack, or help you decide when you need to replace your current set.