Set of 8 high performance intake valves (31 mm stock diameter) for the Kawasaki ZX10R (2004-2005) - first generation!
 
Perfect replacement for your worn out stock valves - ready to install.
 
Made of the best grade stainless steel (EV8 / 21-4N) commonly found in high performance valves used for racing or modified engines (N/A, turbo or nitrous), these are a great improvement over the standard valves in strength and heat resistance.
 
These valves are finished with a durable black nitride coating to avoid stem wear and increase durability. These valves also have hardened valve tips.
 
Race Series is our new design with a 30º Back Cut to improve airflow and smooth the transition to the seat area as well as other improvements aimed at saving weight by optimizing valve dimensions.
 
These valves are 31,0 mm (stock OEM size) and also have a flat face - just like the original valves.
 
We also have stock stainless exhaust valves. See our other listings.