I'm a '99 Audi A3 1.8T Owner. It has AGU engine and 5 speed, same as '99 Golf Mk4 1.8T.
It has slightly tuned, (230-240 hp) so stock clutch isn't enough for it.
When I asked on google, there are lots of answers about 1.8t clutch upgrade.
Everyone on several forums, in UK and US, says "Buy a Sachs Stage1 (VR6) clutch&flywheel kit"
It's ok, but what is stage1 kit?
Is it complete clutch kit of VR6 + G60 or any single mass flywheel?
Or 1.9 TDI 130 (PD130) clutch disk + VR6 pressure plate + G60 flywheel?
If it is completely VR6 kit, it's easier to find it in Turkey.
But if isn't, I have to buy it from UK or US and it means I have to pay a shipping cost as clutch kit
Volkswagen Golf IV 1.8T > Drivetrain > Clutch > Stage 1 > ES#125 Stage 1 Clutch Kit - With Lightweight Steel Flywheel (14lbs) - ESR198031S1
or a ebay seller:
VW Golf Jetta 1.8T OEM SACHS VR6 Clutch Flywheel kit | eBay