Unlock serious performance from your Fiat Abarth with the JB4 plug and play tuner. This intelligent piggyback ECU works alongside the factory calibration to optimise boost, timing and fueling, delivering quicker spool, reduced turbo lag and power gains of up to 40 whp and 40 wtq on a standard car. No ECU flash is required, and it remains compatible with locked ECUs, making it a superb remap alternative that is fully removable.
- Plug in installation to two engine bay sensors with advanced CANbus OBDII integration for real-time tuning and safety
- Up to 40 whp and 40 wtq on a stock vehicle with smooth, factory-like drivability
- Preloaded with up to 8 maps covering stock, 91 octane, 93 octane, E30/E85 blends, unleaded race fuel and Valet mode, plus boost by gear
- Read and delete fault codes, log and view extensive live data, and switch maps via the optional JB4 PRO Bluetooth adapter and smartphone app
- No ECU unlocking or flashing, not VIN-locked and can be removed without trace; fuel economy unchanged during normal driving
- Rugged billet aluminium enclosure, designed and assembled in the USA with a 5-year warranty
The JB4’s CANbus functionality takes key data directly from the ECU, including throttle and pedal position, timing advance, fuel trims, air/fuel ratio, knock feedback and gear, allowing precise adjustments for strong, consistent performance. Always refer to the JB4 mobile app map descriptions for the latest guidance when changing maps.
Vehicle fitment
Fiat Abarth 2013+ Turbo
Nforcd supplies the JB4 for Fiat Abarth across the UK and knows this upgrade inside out. Order online today for fast dispatch. Professional fitting is available through Nforcd in Warwickshire. To request a fitting quote, email Sales@nforcd.com.




