Im debating on putting a stock 06 Roush Charger on my 08 Roush. Im trying to find out what all i need to do to make it work. On the Roush website it shows that the 05-06 is only for the 05-06 and the 07-08 is only for the 07-08 or what not. Is there really that big of a change in them? I have tried to contact the website but no luck. Thanks!