has designed several performance kits for the 600 CFI Twin Engine.
These kits will AMAZE you in how
they transform the 600 power-plant from a slightly "LAZY" 600 to a
Just by replacing the stock OEM
Pistons with our , RK TEK EXCLUSIVE,
Pistons will completely transform your engine and its power--output!!
We also have our FAMOUS
industry leading DROP IN KITS, and our 660 BIG-BORE Kit!
600 Drop In Kit...+14HP
Highest HP in the Industry
600 Cheater Head with
Patented Combustion Chambers
600 Direct Replacement
Pistons... Custom Design
HP & Reliability added
Custom Cylinder Porting