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Following on from the success of the MK3 Focus ST, the new MK4 Focus ST has changed entirely the driving dynamics of Fords Hot-Hatches. The newMK4 Focus ST is more nimble than ever before, with a modern interior and packed with creature comforts. We at TRS Performance really wanted to wake up Fords newest hot-hatch and have manged to extract 350BHP and 560Nm from the 2.3l Ecoboost engine, all with completely stock hardware fitted. This turns the MK4 Focus ST into an extremely capable machine.


Power is typically increased to 350HP and 560NM of torque*


Engine Tuning Features include:

  • Increased Over-run Duration
  • Increased Over-run Aggression
  • Increased RPM limit.
  • Pedal response optimised to your requirements.
  • Cold Start Delete
  • Stop-Start Delete


This is a workshop installation to be carried out a TRS Perfomance HQ or your local dealer

*Power figures are climate, fuel quality and vehicle dependant.


Ford Focus ST MK4 2.3l Ecoboost - STG1 Tuning

  • You have 30 calendar days to return an item from the date you received it. To be eligible for a return, your item must be unused and in the same condition that you received it. Your item must be in the original packaging. Your item needs to have the receipt or proof of purchase.

    Once we receive your item, we will inspect it and notify you that we have received your returned item. We will immediately notify you on the status of your refund after inspecting the item. If your return is approved, we will initiate a refund to your credit card (or original method of payment). You will receive the credit within a certain amount of days, depending on your card issuer's policies.

  • Packages will be sent Special Delivery via Royal Mail delivery service.

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