Elegant MOOSE RACING Torque Spacer Kit - Suzuki Yamaha 08-312SK Relaxed

Torque Spacer Kit - Suzuki/Yamaha Simple but effective way to shift the torque curve to favor the low-end to mid-range band of the rev range, CNC-machined, eliminating interference problems when installing; includes gaskets and bolts, Insert spacer between cylinder and reed valve, Made in the USA