As the title suggests, I'm rebuilding the engine from the Volkswagen mk5 Golf Gti now all of the parts are in.

Headgasket set and timing kit
BGA Automotive: https://bgautomotive.co.uk

Injector flow and clean test
Bob Beck: https://www.bobbeckfuelinjection.co.uk

KO3 Turbo core:
https://www.littco.co.uk