EFI Performance
Bethel, Connecticut
Subaru and sport compact performance, from workshop preparation to the dyno and the track.

About the shop
EFI Performance, formerly EFI Logics, combines performance installation, maintenance and custom ECU calibration at its Bethel shop. Its in-house Mustang AWD dyno supports tuning work, while the workshop handles engines, drivetrains, brakes, suspension, wheels and tires.
- Location
- Bethel, CT
- Dyno
- Mustang AWD
- Calvin’s role
- Calibrator / Race Engineer
Dotson Tuning & EFI Performance
I’ve worked with EFI since 2016, when the shop was known as EFI Logics. I’m typically at the Bethel shop twice a month for several days at a time, tuning customer cars and working with the team on their builds.
I also provide calibration and race-engineering support for EFI’s race cars and the Subimods GRIDLIFE team.