GTPUMPS specializes in bolt on upgrades for Subaru WRX/STi and Mitsubishi Lancer Evolution. GTPUMPS haS the largest range of bolt on upgrade Mitsubishi based performance turbochargers in Australia, also offers turbocharger upgrades/rebuilds as well as brand new turbochargers. Mitsubishi based performance turbochargers in Australia from street 350hp all the way to track 600hp options.