for a good stage2 your looking at the following
Pipercross Panel Filter
good cat back exhaust system, most go milltek
Forge Silicone Turbo intake pipe
Forge 007p re-circ valve
Remap
Good service - Oil, Coolant, Filters, Spark Plugs
Optional
3 inch downpipe and sports cat/De-cat
Forge Silicone Boost Hoses
Cambelt Kit & Water Pump & Aux belt change if old.