These are just a few I remember

Burn's flywheel 20 grams too light in Argentina = exclusion from Burn's inherited win.
https://www.autosport.com/wrc/news/1...tina-exclusion

Hirvonen's clutch and turbo in 2012 Portugal. The turbo part .02mm too big. Hirvonen's win transferred to Ostberg,
https://www.autosport.com/wrc/news/9...-hirvonen-case

2009 Rally Australia - antiroll bars - Citroen - 1 minute penalty. Hirvonen/ Ford winner instead of Loeb.