Found this on eBay and thought it might be good for some w202ers looking to increase boost. I know there isn't a lot kits available these days.

I have no affiliation with these people, just saw it and thought I would share.

It looks like it replaces the clutch style pulley completely. So you may need to get something coded out to avoid a check engine light. May want to talk to them about it, or talk to a tuning company.
The pulley is available in various sizes for various boost levels.
Seems pretty good, and price isn't too bad.
They also seem to do supercharger rebuilds and modifying Superchargers to maximize flow.

Have a look.

https://www.ebay.ca/itm/272473097237