this guy I know has a 89 Mazda RX-7 SE and he talks mad **** about how it will dust my 89 Bill Blass his RX is bone stock and he even said his girlfriend dusted a 2000 GT stang with it which I find hard to belive how do you guys thinka 89 Bill Blass with flowmaster exhaust MAC cold air and ASP underdrive pulleys would fair up against his RX-7?