APR Gen 5 Haldex Upgraded Pressure Relief Valve Spring Stage 2

APR Gen 5 Haldex Upgraded Pressure Relief Valve Spring - Stage 2

APR has built its reputation on engineering software and hardware that work as one integrated system rather than standalone upgrades. This Stage 2 spring upgrade is the hardware half of that equation, purpose built for Gen 5 Haldex all wheel drive systems and designed to unlock the full benefit of APR's Stage 2 Haldex software calibration.

This listing covers the APR Stage 2 Spring Upgrade for vehicles fitted with the Gen 5 Haldex AWD system. It replaces the factory clutch pressure relief spring with a precision calibrated component, enabling higher clamping pressure under load while retaining the OEM valve body and control strategy.

Note: This spring is designed to be paired with APR's Stage 2 Haldex software calibration to achieve its full performance benefit.

Key Features

• Direct replacement for the factory Haldex clutch pressure relief spring
• Precision calibrated for increased clamping pressure under high torque demand
• Retains OEM Haldex valve assembly and control architecture
• No disassembly or modification of the factory valve body required
• Improves torque transfer to the rear axle for faster AWD engagement
• Maintains factory drivability and long term reliability

Vehicle compatibility, OEM part numbers, and fitment notes are provided in the tabs above. Please ensure your vehicle's Haldex generation and configuration are confirmed before ordering.

Not sure if this kit suits your build? Contact our team at sales@chicaneaustralia.com.au for expert advice.