suggest me a good performance clutch stage 1 for octavia II 1.8 tsi 6 speed manual

For 'stage 1' you don't need a new clutch. A standard one will be fine. It's only when putting big power/torque down that you'll need a new one and you won't be doing that with a map...

For 'stage 1' you don't need a new clutch. A standard one will be fine. It's only when putting big power/torque down that you'll need a new one and you won't be doing that with a map...

can you tell me some performance clutch for octavia II 1.8 tsi 6 speed manual

Sachs. 

As used in Sharks 350hp octavia. 

(and mine).