JB4 Tuner for 2013-2017 Ford Fiesta ST 1.6L & 2018-2023 Fiesta ST 1.5L - Burger Tuning Select:JB4PRO Adapter (Uses Free JB4PRO App) denser air to the engine

denser air to the engine while reducing heat soak from the engine bay

ensuring your engine performs at its peak

• 1x Silicone Coupler

All USA kits now ship with built in harness for use with Continental flex fuel sensor

JB4 Tuner for 2013-2017 Ford Fiesta ST 1.6L & 2018-2023 Fiesta ST 1.5L - Burger Tuning Select:JB4PRO Adapter (Uses Free JB4PRO App) denser air to the enginePower gains of up to 40hp and 70tq to the wheels on a stock vehicle! This plug and play Ford Fiesta ST tuner plugs into easy access sensors in the engine bay and works with your factory ECU tuning to remap your boost, timing, and fueling for optimal performance and reduced turbo lag. It features a 64mhz processor allowing sensors to be sampled 800 times per second using dedicated 10 bit digital to analog converters, ensuring smooth and powerful