At HAT Racing, our services are made up of custom fabrication, modification and design, general mechanical servicing as well as upgrades and additions, from the smallest part to full custom car builds. Engine swaps, transmission rebuilds, regearing rear differentials, brake system rebuilds and upgrades, clutch replacements, electrical repairs, fuel system enhancements are just a few of the jobs we love to provide to our customers.At HAT Racing, our services are made up of custom fabrication, modification and design, general mechanical servicing as well as upgrades and additions, from the smallest part to full custom car builds. Engine swaps, transmission rebuilds, regearing rear differentials, brake system rebuilds and upgrades, clutch replacements, electrical repairs, fuel system enhancements are just a few of the jobs we love to provide to our customers.