hi guys,The cloth seats of my 318is is really showing up its age these days and i'm thinking of getting new pair of seat/touch up the interior. I'm haven;t made up my mind about either installing Recaros (Non-BMW specific) or just buying used e36 leather coupe seats. Anyways, i wanna know how hard is it to install the aftermarket seats, i mean like the rail etc,and where can it be done? thanks guys, always appreciate ur help.