Review on Prox Racing Parts 28 SIS2424 2 Intake by Danny Kimble

I bought these valves thinking they would be simple. I took my head (yfz450) to a local shop that specializes in motorcycle repairs. They offered me $100 to replace the valves and head. It turns out these valves were either improperly packaged or incorrectly manufactured from the start. The central intake valve is clearly not for this head. I had to buy another intake valve through a white kibble (standard sizes). My bill was over $300 including the purchase of a center intake valve and the labor they charged me to diagnose the problem. I am not satisfied with this purchase. DO NOT BUY THIS KIT. PROX DOES NOT REPRESENT YOUR PRODUCT