ProX Valve and Spring Kit Exhaust KTM | 28.SES6327-1 Bombardier Don't mistake more visibility and

Don't mistake more visibility and comfort for weakness

Last but not least

With incredible strength and high 40°+ articulation angles

Why are they needed / Better:

ProX Valve and Spring Kit Exhaust KTM | 28.SES6327-1 Bombardier Don't mistake more visibility andReplaces the OEM valves and valve springs Steel, nitrided valves for increased durability and less wear under extreme conditions Stronger valve springs deal with the extra weight of the steel valves Springs are made from premium chrome vanadium steel for higher performance and durability at high rpm Kit contains a set of steel intake or exhaust valves plus a set of specially designed valve springs; can be installed using the OEM retainers, bases and