Whats up with this brand unless its a built engine, most of there products are rebranded items.
Look Cosworth has History of R&D back in the day but is today just company that rebrand other company's products and charge an extra 70-200 USD more then other products that are same.
The name sells obliviously, would you pay extra just to have "Cosworth Parts" In your car ?
There are 3 case I've came accross but I'am sure they are plenty more by all means respond
-Carrillo H connecting rods
-K&N Air intake
-Gates timming belt
also nameless products for the brz?
Sorry for this Rant/stab at Cosworth. It's anoying if you ask me when a company with a brand name just slaps the logo on other company's products and charging extra instead of making innovating new products.
Again Im sure they actually make something themselves ie engine stuff? :/
References
Cosworth Timing Belt - NASIOC
Cosworth rebranding K&N intakes? [Archive] - Subaru Enthusiasts Car Club of the Sierras