Power and Performance of the Ford Focus MK4 ST 2.3
The Ford Focus MK4 ST 2.3, which hit the market in mid 2019, is built with performance in mind. It combines sharp styling with an engaging driving experience. Under the bonnet sits a turbocharged 2.3 litre EcoBoost petrol engine producing 280 PS and 420 Nm of torque, making it a strong contender in the hot hatch segment. Paired with a 6 speed manual gearbox and a front wheel drive system featuring a limited slip differential, it delivers impressive grip and driver involvement.

Performance and Practical Features
The Focus ST accelerates from 0 to 60 mph in just 5.7 seconds and reaches a top speed of 155 mph. Measuring 4,388 mm in length and 1,825 mm in width, and weighing 1,442 kg, it offers a practical five seat layout with boot space ranging from 375 to 1,250 litres. A 52 litre fuel tank provides fuel economy between 30 and 36 mpg, with CO2 emissions of 179 g per km.

Performance Upgrades for the Ford Focus MK4 ST 2.3
For this vehicle, we carried out a complete Ford Focus ST MK4 Exhaust upgrade using a high flow sports cat downpipe alongside a custom 3 inch stainless steel catback exhaust system finished with carbon tailpipes. This Ford Focus ST MK4 Exhaust System was designed to significantly improve exhaust gas flow, reduce back pressure and allow the turbocharger to spool more efficiently. The result is sharper throttle response, improved power delivery and a far more engaging driving experience.

The setup was built specifically to support the vehicle’s current Stage 1 tune while being fully compatible with future Stage 2 upgrades. This ensures the exhaust system can handle increased performance demands without the need for further modification.

Stainless Steel Exhaust System Upgrade
The custom stainless steel catback system transforms both the performance and sound of the 2.3 EcoBoost engine. The 3 inch design enhances flow and delivers a deeper, more aggressive exhaust note under acceleration, while remaining refined for everyday driving. The addition of carbon tailpipes completes the rear styling with a clean and sporty finish.

Overall, this Ford Focus ST MK4 Exhaust Upgrade improves turbo efficiency, enhances sound and delivers a noticeable increase in driving enjoyment, all while remaining road legal and practical for daily use.