The Supertech dual valve spring kit for VW/Audi 1.8T 20V 4-cylinder engines supplies matched inner and outer springs for the 1.8T 20-valve head. Built for that engine family, the kit is intended as a direct replacement when dual springs are specified or during head rebuilds. Use it to retain correct valve control and provide the springing configuration required by 1.8T 20V applications.
Supertech VW/Audi 1.8T 20V 4cyl Dual Valve Spring Kit