Great help, thanks you guys ^
Based on this forum's threads, I've upgraded with:
-Bilstein B8 shocks and H&R 25mm lowering springs
-Milltek non resonated cat back exhaust
-GIAC stage 1 software tune (+50hp, at best)
-Forge adjustable rear tie bars
-Forge recirculating diverter valve
-H&R front and rear ARBs
-H&R wheel spacers (10mm front, 15mm rear)
-Jetex panel filter
And of course some snow tires so I can shred around in the Canadian winter.
Next spring: new 18" gen. 1 Audi TT wheels, new turbo hoses and intercooler hoses, Powerflex bushes all over, 3" downpipe, maybe bigger brakes, and it's a long shot but maybe rebuild for a 300+ hp engine - that seems quite complicated and expensive though. And I am very much open to suggestions.