Ok I have a 15" 05 L7 in a tcab box and it's nice I'm thinking about upgradeing to a 06 l7 it would cost me about 80 bucks to get the new one after I sold mine so do you think it would defeintly be worth the step up for 80 bucks. I was really wondering has any one ever done a direct swap with a 06 l7 with there 05 l7 and metered the difference between the 2 or can give me some insight on how much better the sq really is.