Bolt check. Control arms, sway bars, strut tops, strut pinch bolt, etc.
My dad just put Sachs Performance CO's in his GTI, and making sure all of the bolts were tightened correctly fixed a host of clunks and noises he was having. There's still some clicks and pops, but it's due to a spring design issue causing binding, that they are currently R&D'ing for a fix.
How are the FA's? I've been looking at a set of either the 510's or the MSC's. Christmas is right around the corner...