was just wondering if their is any major differences with the two engines (apart from power) and if you could theoretically put a GTI engine in an R and tune it to the same power. i may have blow up my mk6 R top end and getting a rebuild is too expensive. :\\
Two different engine families - R is EA113, GTI is EA888. If you need to replace your R engine, get one out of a Mk5 GTI and swap over the turbo, injectors, etc.