My clutch is slipping so it's a great time to redo it. I have an APR Stage 1 Chip and don't foresee doing more than air /exhaust in the future.

On ECS they list so many different clutch kits, which one is recommended? Any help is greatly appreciated.

 

If you have no plans for a turbo larger than your current turbo, you would be fine with a stock-replacement clutch. If you plan to increase power level (significantly) then you would need to start looking into a higher stage clutch according to your anticipated need.

This is the clutch I use:
Audi B5 A4 Quattro 1.8T Drivetrain Clutch - 52285615 - Clutch Kit With Single Mass Flywheel - ES#251027
(It was cheaper on Amazon for me since I have Prime)

I'm running this clutch on a FrankenTurbo setup, which is definitely pushing it, but for now it works. If I were to upgrade it would be to ECS RA4 Stage 1:
Audi B5 A4 Quattro 1.8T Drivetrain Clutch - RA4S1-STEEL - RA4 Conversion Clutch Kit - Stage 1 - ES#5485
Obviously there's a bit of a price difference, so it's something to consider.

 

This is perfect, thank you.