ALTA Blow Off Valve Spring Upgrade MINI Cooper S/JCW (R56)

ALTA Blow Off Valve Spring Upgrade - MINI Cooper S/JCW (R56)

ALTA Performance built this Blow Off Valve Spring Upgrade for owners who want more consistent boost control from the factory BOV without the cost of a full replacement valve. It's a simple internal upgrade for the MINI Cooper S and MINI JCW turbo engine, aimed at reducing boost leak and improving reliability under sustained boost.

This listing covers the MINI Cooper S (R56) and MINI JCW (R56). The same N14/N18 turbo engine and blow off valve were also used across other second generation MINI models, including the Clubman (R55), Convertible (R57), Coupe (R58), Roadster (R59), Countryman (R60) and Paceman (R61). Only one SKU is listed - AMP-TAC-100.

Key Features

• Upgraded internal spring for the factory blow off valve
• Improves boost holding capacity and consistency
• Reduces risk of boost leak under sustained boost
• Bolt in upgrade using the existing BOV housing
• Cost effective alternative to a full BOV replacement

Vehicle compatibility, OEM part numbers, and fitment notes are provided in the tabs above. Please confirm your MINI's chassis code and engine before ordering.

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