Ok, I'm ready to make my cat faster. I have done alot of research and decided to go with a procharger on my 454 mag mpi. I think the stage 3 is the way to go. Have any of you installed the stage 3 kit on your merc engine? Have you changed the exhaust? What kind, headers or manifolds?I am ready to buy, so what dealer can give the best price? My mechanic and I are going to install it. Please help. Reply to
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Try Doug Fisk @ 816-835-2628 or 816-525-3925 tell him Shane Sherman sent you and tell him you are from OSO procharger is about 10 miles from our house and Doug went to school with the owners so he has a pretty good relationship.

Last year I got a stage 4 from RWmarine. He is OSO member. If I remember right he has a sale going on now. He had best price I could find.