Could be but if MM was so much better then upr as so many people claim the racers would use it. Most of the suspension stuff you see for a fox body at a real race is upr race craft an team zI really think this comes down to the fact that more guys drag race than road race. Simple as that. By default there's going to be more UPR equipped drag cars than there are MM equipped road race cars because there are more drag cars than road race cars.