As ViktorG said. Keep the stock intake. Do the S.A.B.M. ( stock air box modification ) and get a Bully Dog. You can fab your own S.A.B.M. look on YouTube, you'll get the idea. Drop in a K&N. Get a nice free flowing cat back exhaust, to start with. These things paired with the Bully Dog = Loads of Fun!!! Depending on the model, the 93 octane may be "Trial".