This option is for you if you're an existing FLASHlink Stage 01 customer that wants to take advantage of the enhanced power output and overall performance of the Stage 02 calibration.

The ZERONINE DESIGN power upgrade for the Mk4/4.5 Focus ST goes beyond just a performance uplift, releasing up to 366HP and 438Ftlb from the ST's 2.3-litre  EcoBoost engine.

The additional torque available is delivered throughout the entire rev-range and translates into drivability improvements and a total transformation in the overall driving experience and fun-factor.

Delivered via a revised performance calibration which will be sent to you and updated / installed to your vehicle in exactly the same manner as the Stage 01 calibration.

For optimum performance, efficiency and reliability, we recommend the use of the following companion hardware when migrating to Stage 02:

• ZERONINE DESIGN carbon induction kit
• ZERONINE DESIGN high-performance alloy intercooler
• High-flow 3" sports cat downpipe
• High-flow / Sport GPF / GPF delete

You will already require a FLASHlink Stage 01 upgrade / app to be able to install this companion calibration.

Installing the Stage 02 calibration without the correct hardware may result in failure to achieve the quoted power and / or torque figures, abnormal running, detrimental fuel consumption or engine warning light illumination. In extreme circumstances, damage to and / or failure of the engine is also possible. in any such instance no warranty is offered or implied by ZERONINE DESIGN.

By purchasing this product you agree for ZERONINE DESIGN to send you emails about new updates or technical features relating to FLASHlink. You can opt out at any time.

Phone shown for illustration of FLASHlink app only, and is not included.