Check common places for rust, i.e everywhere
But arches and turrets etc
As standard they have yellow injectors and a 2BAR map sensor
The "normal" stage 3 conversion which will see 330-350bhp will consist of:
-31 Actuator, Green `803` Injectors, 3BAR Map Sensor, RS500 Style Intercooler, T34 Turbo
Do'nt think I've missed anything on the list for Stage 3, oh, some good brakes