Explore the Relentless Motorsports TX Supra: a JDM shop project combining custom craftsmanship, automotive electronics and an ongoing 1,000+ horsepower-target engine build with Watts Shop.

A 2009 BMW E92 M3 that brings a six-speed manual, supercharged performance and factory engine management together in the Relentless Motorsports TX project lineup. A DRIVER-FOCUSED FOUNDATION This M3 starts with a lightly optioned configuration and no iDrive. Its six-speed manual transmission keeps the driving experience central to the build. SUPERCHARGED PERFORMANCE The car produces approximately 700 horsepower with an Active Autowerke Stage 3 supercharger system and water-methanol injection....