so we canīt see how your car looks now
ditch the run flatīs, gives you a mutch better ride
buy some sweet weheels 17s or 18s`, replica allowed in belgium. but buy a brand. WSP, VMR ore something like this
what is the sense of a bmw performance exhaust? weld a tip on and ready (just for optik)
would do lci blacklines. also have a look at ebay. would buy m sport bumpers front and rear, pre owned and some replica front splitters, maybe some sport springs and you will have a clean hatch
so start with the mods