The 09Design Stage 01 power upgrade for the Post-April 2024 Mk4.5 Focus ST with manual, or automatic transmissions provides a substantial uplift in both power and torque across the entire rev-range, adds a host of new functionality and improves outright performance, drivability and enjoyment.

Since launch, the later models using the MG1CS017 ECU have featured additional security which, until now has prevented access. Working with our partners at HP Tuners has allowed us access so we can now bring owners of later model Focus ST the same exciting FLASHlink OBD performance calibrations and functionality enhancements.

This upgrade is supplied as standard with four calibrations; Stage 01 High Torque (HT) (329bhp | 438 FtLb), Stage 01 (329bhp | 380FtLb), standard and anti-theft.

As with all ZERONINE DESIGN upgrades, every product has to pass our own stringent durability testing, which includes thousands of both track and road-mile accumulation whilst monitoring key powertrain and drivetrain parameters. When it comes to performance calibrations, we have decades of experience at both OE and the highest level of motorsport under our belts, so you can be assured that regardless of how you drive your car, or what octane fuel you want to use, a ZERONINE DESIGN calibration will deliver OE-like drivability with robust, reliable performance, lap-after-lap, mile after mile.