I know there are hundreds of vipers and srx's that are in need of powervalves fixed ....just to make it clear to alot of guys the power valve is made from alumnium ..however the power valve cable ans ball end is made from stainless steel ..so what happens is the stainless gets enbeded into the alumnium valve top thus causing the valved to be out of sync .not to mentin the cables strech making allignment even worse ....and last time i checked valves were rite a 130 dollars american and in the 200 range in canada ..and sweeden even more ...i am trying to avoid the first snow rush this year ..since i spent all season doing valves instead of sledding ...so this year we got to start early or i might not be able to make everyone happy . so get with all your buddies round up all the valves you can get you hands on and get them in the mail the more valves the bigger the discount ....