Disable product if styleid=x

As I’m not using many other products and plugins but yours (currently 6 1/2) and vBSEO, I hope it would be ok to ask here..

Some products, the Nexia’s Web Crawlers Bundle product as an example I’m only using when the stock vBulletin style (my admin style sort of say) is selected.
Wanting to reduce that query on forumhome when my main style is selected I wondered if it would be possible to create a global plugin enabling and disabling products if styleid=x?