I know these are the two major differentials available. I know of only a few members who have went the Evosport route. A lot more have went with Dinan and there is mixed reviews, some cars have went thru 2, 3, 4 and even 5 different differentials. Any more feedback from owners and anyone switched from Dinan to Evosport or vice versa. I know also Evosport has a few different levels of their differential available also.