Catalytic converter
Exhaust Pipe & its assembly
Heat shield
Heat sleeving and tape
Muffler
Air filter
Carburettor & its parts

Fuel:
cooler
distributor
filter
injector
pump
pressure regulator
rail
tank
water separator
Intake manifold

Air blower
Coolant hose
Cooling fan
Radiator

tailpipe emissions test? Anyone?

Lol...