Let's find your parts. Start with your car.
Let's find your parts.
Start with your car.
MK4 Focus ST Stage 1+ Remap — 360–370bhp (2.3 EcoBoost)
- Regular price
- £499.00
- Sale price
- £499.00
- Regular price
-
£599.00
WP Stage 1+ — 360–370bhp / 370–385ft/lb
Stage 1+ is the maximum we can safely extract from the MK4 Focus ST while keeping the car fully road legal. By pairing our Stage 1+ calibration with an upgraded intercooler and performance intake, we deliver 360–370bhp and 370–385ft/lb — all with the factory GPF and catalyst still in place.
The stock intercooler is the single biggest limiting factor on the MK4 ST. It heat-soaks aggressively — after just a few hard pulls the ECU starts dialling back power to protect the engine from excessive intake temps. An upgraded intercooler solves this completely, keeping temps consistent and allowing us to run a more aggressive calibration with confidence. The intake upgrade improves airflow into the turbo, letting it spool more efficiently and sustain boost through the rev range.
What's included: Custom dyno calibration with before & after printout
Required hardware: Upgraded intercooler · Performance intake
Strongly recommended: Clutch upgrade
Advised: 99 RON fuel — Shell V-Power or Tesco Momentum
📖 Read our full MK4 Focus ST Tuning Guide →
WPFlasher — Remote Tuning Option
Can't make it to the workshop? Our WPFlasher device lets you receive your custom calibration remotely. You read your stock ECU via the OBD port and send us the file, we build your custom tune and send it back, and you flash it yourself at home. If you're able to take data logs, send them over and we'll refine the calibration further. Select your preferred installation method at checkout.
WP Stage 1+ — 360–370bhp / 370–385ft/lb
Stage 1+ is the maximum we can safely extract from the MK4 Focus ST while keeping the car fully road legal. By pairing our Stage 1+ calibration with an upgraded intercooler and performance intake, we deliver 360–370bhp and 370–385ft/lb — all with the factory GPF and catalyst still in place.
The stock intercooler is the single biggest limiting factor on the MK4 ST. It heat-soaks aggressively — after just a few hard pulls the ECU starts dialling back power to protect the engine from excessive intake temps. An upgraded intercooler solves this completely, keeping temps consistent and allowing us to run a more aggressive calibration with confidence. The intake upgrade improves airflow into the turbo, letting it spool more efficiently and sustain boost through the rev range.
What's included: Custom dyno calibration with before & after printout
Required hardware: Upgraded intercooler · Performance intake
Strongly recommended: Clutch upgrade
Advised: 99 RON fuel — Shell V-Power or Tesco Momentum
📖 Read our full MK4 Focus ST Tuning Guide →
WPFlasher — Remote Tuning Option
Can't make it to the workshop? Our WPFlasher device lets you receive your custom calibration remotely. You read your stock ECU via the OBD port and send us the file, we build your custom tune and send it back, and you flash it yourself at home. If you're able to take data logs, send them over and we'll refine the calibration further. Select your preferred installation method at checkout.
We keep a large inventory of stock at our warehouse however due to widespread delays in the industry, some items may be on backorder. If you need parts ASAP then please contact us on the live chat or at support@wayside-performance.co.uk and a member of our team will get back to you.
Unsure on fitment? Just drop us a message on the live chat or support@wayside-performance.co.uk and a member of our team will assist. Please make sure to include as much detail as possible including make, model, registration and the parts you are looking at.
