I had and have a Mk5, Mk6, Mk7 GTI’s and Mk7 GLI all stage one tuned. NO MECHANICAL ISSUES AT ALL in any of these. All 5,000 mile oil changes. No short trips at all. If I need to go 2 miles, I drive 10-15. No full throttle until 180 oil temp but plenty after that. Lied about the No issue thing. Needed a new clutch in the Mk7 GTI (tuned) at 3,000 miles. The replacement SRE clutch is doing great at 50,000+. Always garaged. Did use lots of tires.