HomeAbout UsAbout Us

By leading through innovation, MasterShift™ is able to deliver creative ideas and solutions to the automotive aftermarket paddle shift industry, and to its customers & dealers. MasterShift™ operates with the highest standards, individually and as a company, giving you honesty, responsibility, and integrity. We would never put the MasterShift™ brand name on any product that is not up to our standards.

American Supercars and Prototypes - MasterShift™, was formed in 2002 to commercialize its research and development work.

The MasterShift™ brand name was created for the companies line of electronic paddle shifters and transmission enhancement technologies. Founded in Fallbrook, CA American Supercars and Prototypes, LLC is proudly manufactured in the United States.

ASaP™ and MasterShift™ has a dedicated team ready to assist you or your company in your aftermarket paddle shifting needs.

Mastershift™ working with Pratt Miller has won the title for Best New Engineered Product at SEMA (Specialty Equipment Market Association) for 2013 and won SEMA's Best New Custom Car Product for 2010.