Inconel head studs M47n2 - BMW 4 cyl engines Tech specs : Yield strength - 200000 PSI Tensile strength -  230000 PSI

Inconel head studs M57N Tech specs : Yield strength - 200000 PSI Tensile strength -  230000 PSI

Inconel head studs M57n2 - BMW 330d 530d 335d 535d Tech specs : Yield strength - 200000 PSI Tensile strength -  230000 PSI

Springs used for higher RPM and/or applying boost to the car . Tech Specs : Installed height pressure - 35kg  10mm lift pressure - 91 kg  12 mm lift pressure...

Tech specs :  installed height pressure - 43KG (+65% over oem springs ) 9mm lift pressure - 99 KG (+60% over oem springs ) Max lift - 13 mm

Performance dual valve springs set with retainers. Tech specs : installed height pressure - 43KG (+65% over oem springs ) 9mm lift pressure - 99 KG (+60% over...

Tech Specs Intake springs installed height pressure – 44KG (+25% over oem springs ) 10 mm lift pressure – 102 KG (+40% over oem springs ) Max  lift – 14 mm   Exhaust springs...

Tech Specs Intake springs installed height pressure – 44KG (+25% over oem springs ) 10 mm lift pressure – 102 KG (+40% over oem springs ) Max  lift – 14 mm   Exhaust springs...

Performance dual valve springs set with retainers Tech specs : installed height pressure - 43KG (+65% over oem springs ) 9mm lift pressure - 99 KG (+60% over...

 The set consists of : 32 large 32 small springs 32 retainers 24 intake locators 12 exhaust locators The valve springs eliminates any possibility of valve floating in...

The BMW M50 dual valve spring set with steel retainers . Perfect for turbo set ups and also high revving engines. They are designed for maximum realibity and...

Performance Valve Springs for M57 - BMW 330d 530d 335d 535d installed height pressure - 28.4 KG (+55%) 9mm lift pressure - 44KG (+50%) Max lift - 11 mm

This set is recommended for cars runing higher than 450-500 horsepower for maximum efficiency , does not compromise long term durability and also have a significant effect on...

Performance valve springs

Performance valve springs set installed height pressure - 27 kg (+60% over OEM springs) 9mm lift pressure - 41kg (+55% over OEM springs) Max safe lift - 10mm

N54 performance valve springs that are going to be runing higher rpm and boost. Ensures stable valvetrain operation . Lightweight steel retainers .