Unlock serious, safe performance from your Smartstream 1.6-litre turbo with the JB4 V3. This plug-and-play tuning box works alongside the factory ECU to refine boost, timing and fuelling, delivering faster spool, reduced lag and genuine gains of up to 40 hp and 60 lb-ft at the wheels on a stock vehicle. Easy to install and just as easy to remove, it is a powerful remap alternative trusted by enthusiasts and now available from Nforcd.
- Plug-and-play tuner for Kia and Hyundai 1.6L Smartstream Turbo 4-cylinder engines
- Proven gains of up to 40 hp and 60 lb-ft at the wheels on a stock car
- Advanced CANbus integration to optimise boost, timing and fuelling using real-time data such as throttle, gear and rpm
- Built-in safety strategies: limits boost until oil and coolant are warm and automatically falls back to a low-boost map if the engine overheats, runs lean, knocks or overboosts
- Read and clear fault codes directly through the JB4
- Preloaded with up to 8 maps including stock and valet; default Map 1 targets approximately 4 psi over stock
- Maps available for 91 octane, 93 octane and E85 blend fuels
- Boost-by-gear control for 1st to 3rd via the app to help traction off the line
- Exhaust flap control available on most applications
- Compatible with the JB4PRO Bluetooth adapter and app for wireless logging, live gauges, map switching and free firmware updates
- Rugged billet aluminium enclosure; designed and assembled in the USA
- Not VIN-locked, fully reversible install and removable without a trace
- Smooth OEM-like drivability and no change to fuel economy during normal driving
- Works with all factory driving modes; 91 octane or higher recommended for performance gains
- Backed by a 5 year warranty
Vehicle compatibility
Kia
- 2019+ K5 1.6L Smartstream Turbo 4-cylinder
Hyundai
- 2022+ Santa Cruz 1.6L Smartstream Turbo 4-cylinder
- 2022+ Kona 1.6L Smartstream Turbo 4-cylinder
- 2021+ Elantra 1.6L Smartstream Turbo 4-cylinder
- 2020+ Sonata 1.6L Smartstream Turbo 4-cylinder
Smartstream sensor check
If your boost sensors are white, this is the correct Smartstream JB4. Black sensors indicate the Lambda version is required. Not sure? Contact Nforcd and we will confirm the right kit for your car.
Nforcd knows the JB4 platform inside out and it has been a popular upgrade with our customers seeking a fast, reversible power boost without an ECU flash. Order online today, or if you would like professional installation, fitting is available at Nforcd in Warwickshire. Request a fitting quote via Sales@nforcd.com.