Engine Performance Mods The goal:
Increase power without any loss of reliability, it sounds a lot easier than it really is. Any one who has been to Pro Circuit has seen Mitch grinding on cylinders and heads day-in and day-out. He takes great pride in building some of the fastest and most dependable race engines in the industry. Two-stroke or four-stroke, it does not matter, Pro Circuit offers the finest engine modifications available today.
As one of the premier engine builders, Pro Circuit is proud to offer our customers nothing but the finest performance products we can make. Each one of these products will make a huge difference in the performance of your race bike, and in most cases extend the lifespan of your engine at the same time. Our reputation depends on how our products perform. To guarrantee you the finest possible products, every part we produce must meet our strict quality control and production standards.