Rush Factory

Rush Factory is an automotive tuning and motorsport shop in Isehara, Kanagawa, focused on engine building, ECU tuning, suspension setup and full vehicle assembly. The team develops and campaigns R35 GT‑R demo cars and provides circuit support and race mechanic services.

The workshop lists machining and diagnostic equipment (damper tester, engine testers, GPS/data logging tools) and acts as an authorized RECARO dealer. Useful for owners seeking performance builds, parts development or race-day support.

Expect hands‑on, technical services rather than a showroom retail experience. The shop works on engine and chassis development, ECU/PowerFC tuning, data logging and race preparation.

Look out for:

• R35 GT‑R demo cars and active motorsport participation.

• ECU tuning and GPS/data logging services for circuit use.

• Damper testing and suspension setup equipment.

• Parts sales and original product development.

Best way to experience it:

Contact the workshop in advance to discuss your car and goals, and arrange either a consultation or circuit support slot; visits are typically technical and appointment‑oriented rather than walk‑in browsing.

• Appointment recommended for consultations, builds and circuit support.

• The location is a working garage—expect noise and limited visitor facilities.

• Website and Japanese listings provide address details; confirm directions before visiting.

• Do not expect fixed retail opening hours without confirming with the shop.