Wossner Forged Piston Set for MINI Cooper S/JCW N14 Engine
High-performance Wössner Forged Piston Set designed specifically for the MINI Cooper S and JCW with the N14 engine, this premium piston kit delivers strength, durability and precision where it matters most. Forged from high-grade materials and engineered for demanding driving conditions, these pistons offer superior resistance to heat and detonation compared with cast alternatives — making them ideal for performance upgrades, turbocharging or track use. Every piston is manufactured to exacting tolerances for excellent ring sealing, reduced friction and reliable performance under boost, helping you extract more power while maintaining everyday driveability. Whether you’re building a stronger engine from stock or planning significant modifications, this Wössner piston set provides a solid foundation for power, longevity and confidence on the road.
Available in standard 77mm and 0.5 overbore 77.5mm
Suitable for MINI N14 engine found in:
- R55, R56, R57, R58, R59 Cooper S models 2007-2009
- Standard Cooper S compression ratio 10.5:1
Product Information
Product Information
Shipping & Returns
Shipping & Returns
Description
High-performance Wössner Forged Piston Set designed specifically for the MINI Cooper S and JCW with the N14 engine, this premium piston kit delivers strength, durability and precision where it matters most. Forged from high-grade materials and engineered for demanding driving conditions, these pistons offer superior resistance to heat and detonation compared with cast alternatives — making them ideal for performance upgrades, turbocharging or track use. Every piston is manufactured to exacting tolerances for excellent ring sealing, reduced friction and reliable performance under boost, helping you extract more power while maintaining everyday driveability. Whether you’re building a stronger engine from stock or planning significant modifications, this Wössner piston set provides a solid foundation for power, longevity and confidence on the road.
Available in standard 77mm and 0.5 overbore 77.5mm
Suitable for MINI N14 engine found in:
- R55, R56, R57, R58, R59 Cooper S models 2007-2009
- Standard Cooper S compression ratio 10.5:1
