Well so far I have install 2.5 inch exhaust with free flow cat, custom cold air intake, upgraded ground wire kit, procomp coil, kingsborne wires, sport chipped 02 sensor, voltage stabilizer ( had from another car that i never used so thought what the heck ), Very soon once it arrives procomp msd 6a style ignition, near future ecu tuning, and any other mods. I can afford or think of trying