This kit is offered as an alternative where the OEM application uses lightweight, but less durable Titanium valves. Pro X has now developed the Steel Intake Valve & Spring Kits, containing a set of steel intake valves plus a set of specially designed stronger valve springs. The Pro X kit just replaces the OEM valves & valve springs and can be installed using the OEM retainers, bases and valve seals.
Search through all our listings to find exactly what you need
Search All Listings for 28.SIS3408-2to
Need help? We're riders just like you.
MX Locker © 2025 Accessibility