Thanks guys , Im pretty happy with it so far , be nice to get it on a meter to see what its capable of. Those subs will handle 10 times what they can potentially get now , the box seems very efficient and to be honest most of it was guess work considering the limited space. The owner has removed the 1" lowering blocks and it now sits 5mm lower than what it did when it came in , it still drives very nice and the wieght hasnt seemed to effect anything. The 600km trip to Perth will be interesting though.