Vespa Pk 50 Tuning

Hi, all.

I need some advice for my Vespa Pk 50 xl (v5x3t)

I want little bit tuning.

1. Cylinder. i choose Pinasco 85 cc.

I'm interested in what another part do i need for tuning?

I read some description and found some advices about intake manifold...

Also i Lose my air filter and i decided to buy this one.


So what is your advices?

Pleas be generous.