I have a TI with an M50 and a TI with an S50, love them both, I enjoy driving them equally, the S50 is substantially quicker. I live on country roads and get to drive spirited on my commute, however, if I only drove in town I’d prefer the M50, the S50 is a lil quick to break traction in all the rain I drive in, here in the PNW. The S50 Will also be significantly more expensive in most cases. If it rains a lot or your only gonna be driving in town I’d go with an M50 swap. If your trying to race people at red lights be warned the M50 isn’t the quickest at low rpms, especially if you do m3 cams, my m50 gets smoked at red lights by all sorts of cars, but above 3500 rpms it sounds and feels incredible. Can’t go wrong whatever you chose they’re great cars!
