Power Box

Power Box is a Sasebo-based tuning and custom car workshop offering vehicle tuning, Dynapack dynamometer measurement, and bespoke bodywork. The company also sells new and used cars and accepts customer projects of varying scale.

The workshop lists Dynapack diagnostic equipment, large sand-blast machines for wet/dry use, and a history of partnership with parts vendors. It's located in Minamihaenosaki, close to Huis Ten Bosch, making it accessible for visitors based in the area.

A hands-on tuning and custom-fabrication workshop that handles diagnostics, engine/ECU tuning, and body modification projects.

Look out for:

• Dynapack dynamometer used for chassis tuning and measurement.

• Custom/bodywork examples and project cars on-site.

• Sales area for new and used vehicles.

• Sand-blast facilities for surface prep and DIY work.

Best way to experience it:

Contact the shop in advance by phone or email to confirm availability for dyno sessions or custom work; bring clear project requirements or vehicle details so staff can advise on timelines and feasibility.

• Call or email ahead to confirm staff availability and dyno booking.

• No public opening hours posted; expect appointment-based service.

• Workshop is practical rather than a showroom—wear suitable shoes if visiting the garage area.

• Located in Minamihaenosaki, Sasebo, near Huis Ten Bosch for easy local access.