High Pressure Fuel Pump pricing on manufacturers site here.
Several different companies make differing types and quality downpipes, which also include a motorsports/hi-flow catalytic converter ("test pipes" without a cat are illegal in Australia, but also can be purchased).
Several different companies make "Stage II" ECU tunes, which are usually a few hundred more than the cost of their Stage I ECU tunes. If you have the fuel pump, you need a Stage II+ tune.
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