The Garrett PowerMAX Stage 2 G25-660 is a plug-and-play, direct-fit turbo upgrade for VAG 2.0 TSI / TFSI EA888 Gen 3 engines. Developed to deliver maximum performance without compromising on OEM fit. With professional tuning, this Stage 2 setup delivers up to 600 HP (447 kW, flywheel) and +59% more compressor flow compared to the OEM IS38. The turbo is fully assembled with a calibrated electronic actuator and designed for high thermal loads of up to 1050°C.
Benefits
• Direct-fit Stage 2 upgrade with OEM mounting points•
Up to 600 HP power potential (flywheel)
• +59% compressor flow compared to the
IS38• G-Series compressor and turbine
aerodynamics• Mar-M turbine wheel and stainless steel twin-scroll turbine housing rated to
1050°C• Latest-generation double ceramic ball bearings•
Pre-fitted for turbo RPM speed sensor (optional)
Technical specifications
• Type: PowerMAX direct-fit performance turbo•
Stage: 2•
Power range: up to 660 HP•
Engine capacity: 2.0 litres•
Maximum turbo speed: 165,000 rpm (Stage 2)
• Actuator: electronic,
OEM-compatible• Cooling: 4 water
connections• Bearings: double ceramic ball bearings•
Sealing: double piston rings•
Installation: OEM drop-in
turbo Tech Specs
• High-flow compressor housing with speed sensor port (optional)
• turbine wheel: Mar-M alloy (15–20% more flow, up to 1,050°C)
• turbine housing: stainless steel twin-scroll, up to
1050°C• exhaust housing: OEM
flange• CHRA: V-band, individually positionable
Compressor•
inlet: 54.00 mm•
outlet: 67.00 mm•
Trim: 65
Turbine•
inlet: 54.00 mm•
outlet: 49.00 mm•
Trim: 84
Compatibility
• Audi A3 8V – 2.0 TFSI –
2013–2018• Audi A3 8V Quattro – 2.0 TFSI –
2013–2018• Audi S3 8V – 2.0 TFSI –
2013–2018• Audi TT 8S – 2.0 TFSI –
2014+• Audi TTS 8S – 2.0 TFSI –
2014+• VW Golf 7 GTI – 2.0 TSI –
2013–2018• VW Golf 7 R – 2.0 TSI – 2013–2018
Important (WARNING)
• Maximum permitted turbo speed: 165,000 rpm (Stage 2)
• Use above this limit is at your own risk and may cause
damage• RPM speed sensor recommended to prevent
overspeed– Optional: 781328-0003 (sensor + gauge) or 781328-0004 (sensor)
– Sensors sold
separately• Software tuning is mandatory to utilise performance safely
Contents
• Garrett PowerMAX G25-660 Stage 2 turbo•
Integrated electronic actuator
Frequently Asked Questions
Is this plug-and-play?
Yes, mechanically this is an OEM drop-in for the models listed.
Is tuning necessary?
Yes. Software is required for safe and optimal operation.
What is the advantage over the IS38?
Much higher flow, better thermal margin, greater power reserve and faster recovery.
