Remote ECU tune · 1.8L turbo I4 (EA888 Gen3, IS12)
A custom Stage 1, 2 or 3 calibration for your Volkswagen Jetta / Passat / Golf 1.8 TSI (EA888), built by hand by a real tuner from your own stock file and datalog, and back with you within three hours of the file arriving. We tune these cars remotely, worldwide: you read and flash with your own HP Tuners interface, and you pay only once the tune is delivered.
Stock vs tuned
From the factory the Volkswagen Jetta / Passat / Golf 1.8 TSI (EA888) makes 170 hp and 184 lb-ft (250 Nm). A Stage 1 tune typically adds 53–72 hp and 83–109 lb-ft, for around 223–242 hp in total. With bolt-ons and a Stage 2 calibration that grows to +74–87 hp, and a Stage 3 build — IS20 or IS38 turbo swap (MQB Golf) — typically lands at 301–352 hp.
| Stage | Added power | Added torque | Total power | Total torque |
|---|---|---|---|---|
| Stock | — | — | 170 hp | 184 lb-ft (250 Nm) |
| Stage 1 | +53–72 hp | +83–109 lb-ft (+113–148 Nm) | 223–242 hp | 268–294 lb-ft (363–398 Nm) |
| Stage 2 | +74–87 hp | +106–131 lb-ft (+144–178 Nm) | 244–257 hp | 291–316 lb-ft (394–428 Nm) |
| Stage 3 | +131–182 hp | +125–139 lb-ft (+169–188 Nm) | 301–352 hp | 309–323 lb-ft (419–438 Nm) |
Typical gains from published dyno results; your car will vary with fuel, mods and conditions.
Tuner's notes
Figures are for the 2014+ Gen3 1.8 TSI rated 170 hp / 184 lb-ft in the US Jetta, Passat and Golf; earlier 160 PS Gen1/Gen2 1.8 TSI engines were not covered by these sources.
Supported versions
HP Tuners lists 6 Volkswagen Jetta / Passat / Golf 1.8 TSI (EA888) entries covering 2008–2017, with 1.8-litre engines. Interface: MPVI2 or newer.
| Years | Model / engine as HP Tuners lists it | Controller | Credits | Interface |
|---|---|---|---|---|
| 2008–2012 | Passat 1.8 TSI (MED17.5) | Engine | 4 | MPVI2/2+/3/4 |
| 2008–2010 | Passat CC 1.8 TSI (MED17.5) | Engine | 4 | MPVI2/2+/3/4 |
| 2010–2014 | Passat (B7) 1.8 TSI (MED17.5.2) | Engine | 2 | MPVI2/2+/3/4 |
| 2010–2014 | Passat CC 1.8 TSI (MED17.5.2) | Engine | 2 | MPVI2/2+/3/4 |
| 2014–2017 | Golf 1.8L TSI (SIMOS12.1) | Engine | 4 | MPVI2/2+/3/4 |
| 2014–2017 | Passat 1.8 TSI (SIMOS18) | Engine | 4 | MPVI2/2+/3/4 |
Support data per HP Tuners' supported-vehicle list (June 2026). Check your exact car on HP Tuners' vehicle list before you buy credits.
Stages & prices
One flat price per stage, the same for every car: $250 for Stage 1, $450 for Stage 2 and $650 for Stage 3. Ordering is free and you pay only once the finished tune is delivered. 2 free revisions are included with every order. Gearbox (TCM) shift tuning is included wherever your car's transmission controller can be accessed.
Software only. Every map in the MED17.5 / MED17.5.2 / SIMOS12.1 is recalibrated for the Volkswagen Jetta / Passat / Golf 1.8 TSI (EA888) as it sits today — spark, fuelling, throttle response and limiters — against the datalog you send.
For a Volkswagen Jetta / Passat / Golf 1.8 TSI (EA888) with bolt-ons fitted — intake, exhaust, headers or downpipe, and an intercooler where the car has one. The airflow and fuelling are rebuilt around the hardware you actually have.
Stage 3 on the Volkswagen Jetta / Passat / Golf 1.8 TSI (EA888) means IS20 or IS38 turbo swap (MQB Golf). The fuel, spark and boost maps are written from scratch for your exact combination.
Typical gains from published dyno results; your car will vary with fuel, mods and conditions.
Before you order
How it works
FAQ
Typically 53–72 hp and 83–109 lb-ft (113–148 Nm) over the stock 170 hp, for around 223–242 hp in total. Typical gains from published dyno results; your car will vary with fuel, mods and conditions.
An HP Tuners interface (we recommend the MPVI4), the HP Tuners credits needed to license the MED17.5 / MED17.5.2 / SIMOS12.1 for writing, and your stock file plus a datalog of a drive. You read and flash the car yourself; we build the calibration.
Your custom tune is delivered within three hours of your stock file arriving. Six tuners work three shifts, so a file that lands in the middle of the night is picked up just as fast.
Stage 1 is $250, Stage 2 is $450 and Stage 3 is $650, flat. Ordering is free and you pay only once the finished tune is delivered. 2 free revisions are included with every order.
Stage 3 on the Volkswagen Jetta / Passat / Golf 1.8 TSI (EA888) means IS20 or IS38 turbo swap (MQB Golf). The maps are written from scratch for your build, and typical results are 131–182 hp over stock. Typical gains from published dyno results; your car will vary with fuel, mods and conditions.
