Engine, gearbox, and differential oils, brake fluid, coolant, additives, and assembly lubricants, designed for tuned engines and the heat that builds up on the track.
The main brand is AMSOIL, featuring 100% synthetic oils from the Signature, European, and Dominator ranges, along with GReddy, Motul, and Bardahl. Before choosing an oil, check your car manufacturer's manual for the required viscosity and approval (BMW Longlife, VW 504 00, MB 229.5…); we indicate which ones each product meets in its description.
If you do track days, change your brake fluid more frequently than for street use: it absorbs moisture over time and loses heat resistance.