My favorite mods are:
SPARCO GAS CAP
REAR WINDOW MODIFIED AIR VENTFRENCH ANTENNA
LEFT,RIGHT FRONT @ REAR CAMBER KIT
CUSTOM BUILD TRANSMISSION & RACING CLUCHES BY ACV
AEM BIG BREAK SETUP
AROSPEED HI-FLOW CATALYTIC CONVERTERS

Oh god that's only scratching the surface. He also has a completely aftermarket fuel and spark solution, cams, cam gears, springs, valves, and retainers, but no mention of any tuning or ecu upgrades..