I have a full range of Billet 4 and 6 spot calipers/ventilated rotors and hubs made by us to suit all AORC classes and all budgets . All are made from billet 7075 aluminum and have been extensively tested in the USA . These calipers and rotors are about 20 percent bigger than the CNC and WILWOOD variants with much improved performance . We also have Australian made and tested power steer pumps and remote resivor filter housings to suit all applications , they are compatible for use with all american racks but better quality and cost less than their US competitors Our pumps are used extensivley by V8 Supercar teams we also warrant all of our products .