All the metal components on Wisefab E90 front suspension are from high strenght steel

Product features summary:

Wisefab Nissan S14 angle kit has redesigned knuckle to allow more suspension travel with the trending long stroke coilovers

Clamp load 730Kg 20% Increased over standard

Limited Edition FPR8 Fuel Pressure Regulator Suit -8AN (Platinum) TS-0404-1036\n

Clutch Kit - Xtreme Performance Heavy Duty Sprung Ceramic 450Nm 600kg (30% inc.) KNI22001-1B Xtreme Clutch Pro All the metal components onXtreme Performance sprung ceramic kit 1B Recommended for: Motorsport ApplicationsThese kits are available with sprung ceramic friction discs and are designed for motorsport applications where higher heat and torque capacity is required. These can also be used in some road applications. Specifications: Torque capacity 450Nm Clamp load 600kg 30% Increased over standard Sprung Ceramic Friction Disc Heavy Duty Pressure Plate Kit contains everything you