A set of low-mass hydraulic lifters for all VW 16v motors: This is a ticket to running HARD with HOT cams. The multi-valve head was built to run free and this is how it's unleashed.
A savings of 15g each may not seem like a lot. Multiply it across the entire valvetrain, however, the engine's willingness to REV to high RPM will be notably enhanced.
Maximize gains by combining these parts with lightweight flywheel plus accessory and crank pulleys. It all adds up and makes for a surprising performance difference.
Before such final modifications, though, standard VW 16v valve springs should be stiffened to racing spec and titanium retainers are to be installed.