The APR Stage 2 Spring Upgrade for Haldex is the hardware component that unlocks the full potential of APR’s AWD controller calibration for Gen 5 Haldex. Engineered as a direct replacement for the factory clutch pressure relief spring, this precision-calibrated upgrade enables significantly higher achievable clamping pressures under increased torque demand while maintaining OEM-level drivability and system integrity. When paired with APR Stage 2 software for Haldex, the upgraded spring supports dramatically increased clutch pressure during high-load conditions, improving torque transfer to the rear axle and delivering faster, more consistent AWD engagement during aggressive launches and performance driving. The result is improved traction, stronger launches, and enhanced confidence when putting power to the pavement. Unlike spring-only solutions that require disassembling and modifying the factory valve assembly, the APR Stage 2 hardware is engineered as a simple, direct replacement component minimizing installation complexity while preserving factory safeguards and control architecture. Designed to work seamlessly within the OEM Haldex control strategy, the APR Stage 2 Spring Upgrade completes a fully integrated drivetrain performance solution allowing increased torque capability without compromising daily drivability or long-term reliability.
APR APR Stage 2 Spring for Gen 5 Haldex MS100267
Specifications:
| Brand | APR |
| Category | Driveline and Axles |
| Emission Code | 6 |
| part type | AWD Coupling Unit |
| Sub Category | Differential |
| Warning | California Proposition 65 |
| Description_SHO | Stage 2 for Haldex |
| Description_INV | HALDEX STAGE 2 SPRING |
| Description_DES | APR Stage 2 Spring for Gen 5 Haldex |
| Description_EXT | Upgraded Pressure Relief Valve for Haldex |
| Description_MKT | The APR Stage 2 Spring Upgrade for Haldex is the hardware component that unlocks the full potential of APR’s AWD controller calibration for Gen 5 Haldex. Engineered as a direct replacement for the factory clutch pressure relief spring, this precision-calibrated upgrade enables significantly higher achievable clamping pressures under increased torque demand while maintaining OEM-level drivability and system integrity. When paired with APR Stage 2 software for Haldex, the upgraded spring supports dramatically increased clutch pressure during high-load conditions, improving torque transfer to the rear axle and delivering faster, more consistent AWD engagement during aggressive launches and performance driving. The result is improved traction, stronger launches, and enhanced confidence when putting power to the pavement. Unlike spring-only solutions that require disassembling and modifying the factory valve assembly, the APR Stage 2 hardware is engineered as a simple, direct replacement component minimizing installation complexity while preserving factory safeguards and control architecture. Designed to work seamlessly within the OEM Haldex control strategy, the APR Stage 2 Spring Upgrade completes a fully integrated drivetrain performance solution allowing increased torque capability without compromising daily drivability or long-term reliability. |
| Description_FAB | APR Stage 2 Spring Upgrade for Haldex is supplied as a fully assembled, direct replacement part. Our instrumented Haldex unit achieved 22+ Bar clutch pressure increase over Stage 1 & nearly 30 Bar over stock Increased pressure means an increase in torque capacity transferrable through the Haldex unit Stage 2 requires only a simple spring change & software flash! APR recommends the proper APR Service Kit for Haldex when installing spring upgrade |
This Part Fits:
| Year | Make | Model | Submodel | Notes |
|---|---|---|---|---|
| 2017 | Audi | RS3 | ||
| 2018 | Audi | RS3 | ||
| 2019 | Audi | RS3 | ||
| 2014 | Audi | TTS Quattro | ||
| 2015 | Audi | TTS Quattro | ||
| 2016 | Audi | TTS Quattro | ||
| 2017 | Audi | TTS Quattro | ||
| 2018 | Audi | TTS Quattro | ||
| 2019 | Audi | TTS Quattro | ||
| 2018 | Seat | Arona | ||
| 2019 | Seat | Arona | ||
| 2017 | Seat | Ateca | ||
| 2018 | Seat | Ateca | ||
| 2019 | Seat | Ateca | ||
| 2012 | Seat | Leon | ||
| 2013 | Seat | Leon | ||
| 2014 | Seat | Leon | ||
| 2015 | Seat | Leon | ||
| 2016 | Seat | Leon | ||
| 2017 | Seat | Leon | ||
| 2018 | Seat | Leon | ||
| 2019 | Seat | Leon | ||
| 2019 | Volkswagen | Arteon | ||
| 2015 | Volkswagen | Passat | ||
| 2016 | Volkswagen | Passat | ||
| 2017 | Volkswagen | Passat | ||
| 2018 | Volkswagen | Passat | ||
| 2019 | Volkswagen | Passat | ||
| 2015 | Volkswagen | Tiguan | ||
| 2016 | Volkswagen | Tiguan |