The JB4 tuner delivers real-world gains for 991.1 (2014-2016) and 991.2 (2017+) 911 Turbo and Turbo S models - up to 140 hp and 176 lb ft at the wheels on stock cars.
Plug-and-play CANbus integration: no ECU flashing, no VIN lock, fully reversible
Preloaded maps for 91/93 RON, E85 blends, valet mode and safety-limited low-boost
Monitor 40+ live parameters, clear fault codes, gear-based boost control via OBDII
Optional PRO Bluetooth adapter enables live datalogging and map switching via free app
Billet aluminium housing; USA designed and assembled; 5-year warranty
91 RON or higher fuel recommended. Works out of the box - no dealership involvement needed.
