APR Gen 5 Haldex Upgraded Pressure Relief Valve Spring - Stage 2 MS100267
APR Gen 5 Haldex Upgraded Pressure Relief Valve Spring - Stage 2 MS100267
Out of stock
Need this part?
This item is currently unavailable. Ask us about availability or help finding a suitable replacement.
Shipping & returns
This selection is unavailable. Ask us to confirm availability and timing.
Shipping details
In-stock orders are processed within 48 hours; transit time is additional.
International orders include export processing and customs clearance. Duties, taxes and brokerage are extra; final freight charges may change after remeasurement.
Read the shipping policyReturns
Need help with a return? Request authorization within 30 days of delivery for eligible unused, uninstalled items. See details for exclusions and applicable fees.
Read the full return policyReturn details & how to start
Request return authorization (RMA) within 30 days of delivery for eligible items. Keep items unused and uninstalled, with original packaging and accessories. Electronics, liquids, special orders and other categories are excluded.
Email sales@frsport.com with RETURN and your order number in the subject to request an RMA. Please wait for return authorization before sending your item back.
Wrong part/size or change of mind: a 20% return processing fee applies, plus applicable shipping costs.
Original shipping is non-refundable. For orders shipped free, the actual outbound shipping cost is deducted from the refund. Return shipping is prepaid by the customer.
After payment capture, cancellations and refunds generally incur a 5% processing fee, except for our error, confirmed defects or confirmed carrier loss. The 5% and 20% fees do not stack; only the greater applicable fee applies. Store credit waives the 5% fee, but applicable return fees remain.
Missing, incorrect or transit-damaged items: report within 3 business days of receipt with photos of the product and packaging.
For defective items, contact us for help with the manufacturer's warranty process. The manufacturer decides the claim.
APR Springs
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.
Upgraded Pressure Relief Valve for Haldex
