The Burger Motorsports JB4 is the proven, plug-and-play tuning box for GR Yaris and GR Corolla owners who want real power-up to 50 whp and 60 wtq-without ECU flashing or permanent changes.
True plug and play: connects to two engine bay sensors, installs in under 30 minutes
No remap needed: works alongside factory software, fully reversible and VIN-unlocked
8 preloaded maps including E85-ready options; boost-by-gear control via optional PRO app
Real-time logging, fault code reading/clearing, and 40+ live gauges (boost, AFR, knock, fuel trims)
Rugged billet aluminium housing, 5-year warranty, made in USA
Works seamlessly with all factory driving modes-no compromise on daily drivability or fuel economy.
