@redishmotorsport: BMW’s whopping 20 hour ‘head-off’ option for Valve Stem Oil Seals is over the top compared to our In-Situ method. F8x M2/M3/M4 (S55) Valve Stem Oil Seal replacement WITHOUT HEAD REMOVAL, using Genuine BMW Parts and Special Tools ✅ BMW-certified Technician ✅ Genuine BMW Parts ✅ Factory Special Tools ✅ Dealer ISTA Instructions #bmw #f8x #f80 #f82 #m3