Stage 2 · Stage 3 · E85 · Turbo kits
Taiwan's fastest Focus ST was built here.
We do more than write software. From Stage 1 to big turbos, fuel systems and ethanol, GP Power ECU picks the parts, fits them, builds a custom calibration and dials in every horsepower with data logging and road testing.
Ask for a build plan on WhatsApp Free Stage 1 power calculator
Choose your stage
Software only
Stock hardware. Turbo petrol engines gain about 20–35% power, diesels 25–40% torque.
Stock carSoftware + breathing
Intercooler, intake and turbo-back exhaust with a custom file. More boost and more timing.
Intercooler · intake · exhaustBig / hybrid turbo
Bigger or hybrid turbo plus fuel system upgrades, calibrated car by car with data logs for maximum power.
Turbo · fuel pump · injectors · clutchEthanol tuning
High octane and strong charge cooling allow more boost and timing: the step beyond Stage 2/3.
Flex fuel sensor · fuel system
Taiwan's fastest Focus ST
The Focus ST's 2.0 and 2.3 EcoBoost are the engines we know best. From the stock file through Stage 2 breathing mods to a big turbo and ethanol, we took the Focus ST to its limit and built Taiwan's fastest Focus ST.
The same experience goes into the Fiesta ST, Focus RS, VW Golf GTI / R, Audi S3, BMW B58 and other popular performance cars. Want to see the car, hear it and talk through the build? Book a visit to our workshop in Hukou, Hsinchu.
- Focus ST Mk3 2.0 EcoBoost
- Focus ST Mk4 2.3 EcoBoost
- Fiesta ST 1.5 / 1.6 EcoBoost
- Focus RS 2.3 EcoBoost
E85 ethanol (flex fuel) tuning
Why ethanol?
E85 has an effective octane rating above 100, burns cooler and resists knock, so a turbo engine can safely run more boost and ignition advance.
How does flex fuel work?
An ethanol content sensor lets the ECU read the blend in the tank in real time and adjust fuelling, timing and boost for any mix of petrol and ethanol.
What parts are needed?
Ethanol needs roughly 30% more fuel, so a high-flow fuel pump, larger injectors and ethanol-safe lines are usually required. We check your fuel system first.
Where do I get it in Taiwan?
E85 is not sold at Taiwanese fuel stations; ethanol tunes are mainly for track and competition cars, so talk to us about fuel supply first.
Turbo kits and performance parts · supplied and fitted
Specified for your car and power target, fitted in our workshop and finished with a custom calibration. Priced per vehicle; ask us on WhatsApp.
Turbo upgrade kits
Hybrid turbos, big turbo kits, manifolds and pipework
Intercoolers and intake
Large front-mount intercoolers, reinforced boost pipes, high-flow intakes
Fuel systems
Low / high-pressure pump upgrades, larger injectors, fuel pressure control
Flex fuel kits
Ethanol content sensor, ethanol-safe lines and fittings, wiring
Boost and ignition
Electronic boost controllers, uprated coils, colder plugs
Drivetrain
Uprated clutch and flywheel, DSG / automatic gearbox software
From first chat to the road
Consult
Tell us the car, its current state and your power target; we plan the stage and parts list.
Spec & quote
Choose parts to suit the budget; you get a full quote and timeline.
Fit
Parts fitted in our Hukou workshop, checked for boost leaks, fuel pressure and sensors.
Custom calibration
A file built for the real hardware, with boost, AFR and timing tuned from data logs.
Road test & handover
Temperatures and knock confirmed safe on the road; the original file stays backed up.
Performance parts and modifications must be registered and inspected as required by traffic regulations; parts marked for track use are not for public roads. We do not remove catalysts, DPF or EGR systems.
Performance tuning FAQ
What is the difference between Stage 2 and Stage 3?
Stage 2 keeps the stock turbo and adds intercooler, intake and exhaust with a custom file; Stage 3 fits a bigger or hybrid turbo and upgrades the fuel system for more power and more parts.
Do I need E85 for Stage 3?
No. Stage 3 can be tuned on 98 RON petrol; E85 or flex fuel adds another step of power on the same hardware and is mainly used for track and competition cars.
Do you sell turbo kits and parts?
Yes. We specify turbo kits, intercoolers, fuel systems and flex fuel kits for your car, fit them and calibrate. Send the car and your target on WhatsApp for a quote.
How far can a Focus ST go?
From Stage 1 to a big turbo on ethanol: we are the workshop that built Taiwan's fastest Focus ST. The right plan depends on your car, budget and use; come and talk it through.
How long does it take?
Stage 1 takes 1–2 hours; Stage 2 about 1–2 days depending on parts; Stage 3 and flex fuel need fitting and several logging sessions, usually a few days. We give you a timeline when booking.
Ask for a build plan on WhatsApp Stage 1 chip tuning in Hsinchu