The Ford Focus ST Diesel Mk3 is the perfect daily driver, offering the aggressive styling and sharp chassis of the petrol ST250 but paired with the immense torque and economy of the 2.0-litre T8DA diesel engine. Mated to a 6-speed manual gearbox, this front-wheel-drive platform is a brilliant all-rounder that responds incredibly well to aftermarket modifications. JXL Performance is your ultimate hub for premium tuning hardware to maximize the potential of your fast diesel Ford.

Explore our complete range of Focus ST Diesel Mk3 upgrades by category: To extract massive torque and improve throttle response, optimize your airflow and thermal management with our Intake and Cooling upgrades, alongside emissions-friendly Exhaust systems. For immediate high-power gains, utilize our plug-and-play Fuel/Ignition tuning boxes and heavy-duty Drivetrain upgrades to handle the increased diesel torque. To sharpen the heavy front-end chassis dynamics, explore our comprehensive Suspension and Wheels/Spacers ranges, while ensuring safe, fade-free stopping power with our highly recommended Brakes section. Finally, enhance your vehicle's aggressive road presence with premium Exterior styling and supportive Interior upgrades, while keeping your T8DA engine running flawlessly year-round with our dedicated OEM-spec Service Parts and Engine Build components.