I always have put Dinan parts on my M3s since I had some bad experiences many years ago with another performance company. Dinan really came through for me in another way recently in an unrelated situation. The timing chain tensioner seized on my E92M3 and put me in a bad spot — I had a race the following weekend and there were no more tensioners in the country. Cue David from warranty service, who worked with the other guys to take their new tensioner off their race engine and overnight it to me. There’s no one else with a commitment to their customers like that! Dinan fan for life.