I would like to know if a Stage 3 conversion which uses a Garrett GT 2871R turbo kit done on a Golf R or a S3 which basically share the same engine. Do you need to upgrade the engine internals like pistons, conrods & head stud bolt to handle the increased power & torque? Is this Stage 3 kit available in the UK now?
Thank you & looking forward to your reply soon.
Have a nice day!!