I'm just wondering if getting the Xcal2 is worth the money. I have a 97 cobra with a few bolt ons. Catted X, magnaflow catback, jlt rai, 4:10s. I've heard the 98's came from the factory with a more aggresive tune than the 96-97's. I was guessing maybe 8-10 Hp gain. Anyone have any experience with it? Thanks