the main problem with the mp3s stock is they have weak ass motor mounts and u get ALOT of driveline loss and u bounce and hop ru way to the 60' mark, with my stock mounts i was getting at best with optimum track conditions and cooper avenger zhp tires a 2.3XX 60' and 16.6's with a 10.5 1/8th mileDarkZetec said:i read that but it seems like the best run was a 16.5. I'd think the mp3 can do better then that