I've had my y-pipe sitting in a box for the last 4 months, and now due to the massive exhaust leak on the rear bank I'm finally gonna put it on. Thier instructions say that the cats will have an arrow as to the directon the flow is supposed to go, but I can't find any arrows. Anyone have any suggestions on how to figure out the direction they should go? Thanks Bruce 94 Opal Frost MTX