Ok just a few things I have up my sleeve that's comes in handy 1. Tighten manifold bolts 2. Lube and clean boost solinoid actuator 3. Change spark plugs + coils 4. Change tps + reset tps 5. Change engine oil + filter 6. Change fuel filter 7. Clean throttle body 8. Block of bov to make flutter 9. Clean aircon filter 10. Clean or replace fuel pressure reg 11. Replace brake pads + rotors + bleed brakes Plus there is a heap more like installing mods eg New cooler Injectors Fuel pump Exhaust cat and dump pipe Actuator Relocate battey to boot or passenger side so turbo side air box can be fitted Dose pipes Plenums And pretty much anything