Prox Exhaust Valve Conversion Set For Yamaha Yz450f & Wr450f
$599.95
Sale price
$599.95
Regular price
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Prox Exhaust Valve Conversion Set For Yamaha Yz450f & Wr450f
$599.95
Sale price
$599.95
Regular price
Latest addition to the ProX program is the Exhaust Valve & Spring Kits. ProX has now developed the Exhaust Valve & Spring Kits, containing a set of steel intake or exhaust valves plus a set of specially designed stronger valve springs.