X-Tech YS120,140,160,170,175 Velocity Stack

Designed & manafactured specifically for YS 4 Stroke engines from FZ120 Through to DZ175 Series Engines!

The X-Tech Velocity Stack improves the flow of intake of air as it enter's the carb providing an overall increase in torque by leveling out in the low to mid range of the engine.

The design incorperates cooling fins around the velocity stack to improve cooling & an lowering of noise @ field tests.

Install's easily onto any YS engine above.