Alternative rear toe links
 

I'm normally not one to cheap out on ebay parts but these seem pretty straight forward. Is anyone running them? I'd hate to break one on a gator....

Megan Rear Toe Control Arms for 05 12 Porsche Boxster 07 12 Cayman 911 996 997 | eBay

I'm running the Top Speed ones for the same reason you are. The ability to adjust them gives your alignment shop some more room. They're powder coated steel and seem well made. Since they're straight and don't have the dog leg of the original ones I was concerned about tire clearance and installed 15mm spacers in the rear. After my alignment job I could have removed them but didn't.

For the most part - the key part here are the spherical bearing ends and their quality. That is what generally separates the more expensive from the less expensive.

Megan racing parts are used by the pros in drifting and time attack.
I think it's safe.

Are these parts actually designed and specced by whatever company has their name on it? Much like the exhausts there are a lot of 'tuning names' that spring up and many are just marketing operations branding the same common part bought from alibaba/aliexpress. You guys in the U.S. call it Topspeed. In the UK same part different names like Toyosport or Direnza.

Nope, megan racing is a legit brand.
If it's good enough for a 1000hp Rx7, it's good enough for a boxster ;)