About

SpeedCircuit was founded in 2006 with the focus on building and tuning MazdaSpeed Proteges. From day one we offered custom ECU wiring, tuning, installation, and builds.

After the release of the EVO X in 2008, our focus changed to that platform. Since then, we've built and tuned hundreds of cars, expanding our knowledge of the BMW, Exomotive Exocet and most recently the Porsche markets.

We manufacture our own brand of quality products such exhaust parts, electronics, intakes, heat shields, pulleys and more. In addition to our products, we offer services such as parts installation, welding, fabrication, remote tuning, track support and instruction, CNC plasma cutting, CAD design, 3D printing, and powder coating. In recent years, SpeedCircuit has focused more attention on road racing, autocross, time attack and track days.