I read that for sale thread the other day thinking that looks like a sweet MK1 haha. Mods to support 1 bar, my plans in the near future, all these mignt not be totally necessary but just a guideline. All new or uprated parts. Full service Front air filter Front mount intercooler Decat Exhaust manifold Exhaust system Plugs Leads Plug and play ECU or EMB etc Half size radiator Fuel pump 255 Boost controller or adjustable actuator Gauges, for peace of mind Good clutch Replace engine hoses, again for peace of mind, especially oil return Might be more