I would not let anybody else work on the heads on one of my motorcycles!
The work that J Precision did for our team made an enormous differnece out on the track. The porting work, lightweight valves and springs they provided allowed us to make more top end and more mid range power! At the same time the package was also extremely reliable, enough for 5 podium finishes in 7 races. I would not let anybody else work on the heads on one of my motorcycles!
Michael Leon
