ProX
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Prox Valve And Spring Kit - Intake - Kawasaki 28.Sis4338-2
ProX
$149.95Replaces the OEM valves and valve springsSteel, nitrided valves for increased durability and less wear under extreme conditionsStronger valve springs deal with the extra weight of the steel...$149.95 -
Prox Valve And Spring Kit - Intake - Kawasaki 28.Sis4336-2
ProX
$149.95Replaces the OEM valves and valve springsSteel, nitrided valves for increased durability and less wear under extreme conditionsStronger valve springs deal with the extra weight of the steel...$149.95 -
Prox Valve And Spring Kit - Intake - Kawasaki | Suzuki 28.Sis4335-2
ProX
$149.95Replaces the OEM valves and valve springsSteel, nitrided valves for increased durability and less wear under extreme conditionsStronger valve springs deal with the extra weight of the steel...$149.95 -
Prox Valve And Spring Kit - Intake - Suzuki 28.Sis3408-2
ProX
$139.95Replaces the OEM valves and valve springsSteel, nitrided valves for increased durability and less wear under extreme conditionsStronger valve springs deal with the extra weight of the steel...$139.95 -
Prox Valve And Spring Kit - Intake - Suzuki 28.Sis3407-2
ProX
$139.95Replaces the OEM valves and valve springsSteel, nitrided valves for increased durability and less wear under extreme conditionsStronger valve springs deal with the extra weight of the steel...$139.95 -
Prox Valve And Spring Kit - Intake - Suzuki 28.Sis3406-2
ProX
$139.95Replaces the OEM valves and valve springsSteel, nitrided valves for increased durability and less wear under extreme conditionsStronger valve springs deal with the extra weight of the steel...$139.95 -
Prox Valve And Spring Kit - Intake - Suzuki 28.Sis3405-2
ProX
$139.95Replaces the OEM valves and valve springsSteel, nitrided valves for increased durability and less wear under extreme conditionsStronger valve springs deal with the extra weight of the steel...$139.95 -
Prox Valve And Spring Kit - Intake - Yamaha 28.Sis2444-2
ProX
$159.95Replaces the OEM valves and valve springsSteel, nitrided valves for increased durability and less wear under extreme conditionsStronger valve springs deal with the extra weight of the steel...$159.95 -
Prox Valve And Spring Kit - Intake - Yamaha 28.Sis2440-2
ProX
$139.95Replaces the OEM valves and valve springsSteel, nitrided valves for increased durability and less wear under extreme conditionsStronger valve springs deal with the extra weight of the steel...$139.95 -
Prox Valve And Spring Kit - Intake - Gas Gas | Yamaha 28.Sis2424-2
ProX
$195.95Replaces the OEM valves and valve springsSteel, nitrided valves for increased durability and less wear under extreme conditionsStronger valve springs deal with the extra weight of the steel...$195.95 -
Prox Valve And Spring Kit - Intake - Yamaha 28.Sis2414-2
ProX
$149.95Replaces the OEM valves and valve springsSteel, nitrided valves for increased durability and less wear under extreme conditionsStronger valve springs deal with the extra weight of the steel...$149.95 -
Prox Valve And Spring Kit - Intake - Gas Gas | Yamaha 28.Sis2402-2
ProX
$195.95Replaces the OEM valves and valve springsSteel, nitrided valves for increased durability and less wear under extreme conditionsStronger valve springs deal with the extra weight of the steel...$195.95