anulex

I have a 2001 RX300 AWD with premium sound. However, my friends 2006 bmw 325 xi has navigation and therefore does have premium sound but her system sounds way better than mine. SO i have been comtemplating putting my Infinity Basslink back in. But i was wondering if anyone had modified the RX's sub to get better bass witha better speaker. I have no problem with the highs and mids of the factory system but bass plain sucks. Its superior for jazz and easy listening. But for the hip generation, it just wont do.