JT&S Performance is an Authorized Land & Sea DYNOmite Tuning Center, located at Infineon Raceway in Sonoma, California.

Owners Jim Higgins, Terry Parsley and Sam McReynolds are motorcycle enthusiasts as well as avid riders. Motorcycles are our passion and together we have over 50 years combined experience in building, tuning and racing both American and Metric motorcycles.
Feel free to browse our site. Call or visit our shop to book an appointment. We are always happy to discuss your options for improved performance!

Back From Bonneville!

We are proud to announce that JT&S Performance is now the home of the

World's Fastest 750 cc Motorcycle!

In the 2008 International Motorcycle Speed Trials, held at the famous Bonneville Salt Flats in Utah, the GSXR-750 turbo built and tuned here at JT&S had eight runs at over 200 miles per hour, setting two new AMA records and two additional SCTA records at the world finals.
Congratulations to our friends Greg and Mick from Australia, and our own "Fireman Jim" Higgins!
For more of Jim's Bonneville photos, check out our racing page!