URD has low-cost 5VZ-FE throttle body gaskets available.
These are the same type that was shipped in the TRD Supercharger kits, at a much lower cost then from the dealer, and without the long wait for delivery.
We had these gaskets made for use with our water injection adapter plates, but got lots of requests for us to make them available separately so people with normally aspirated trucks could use them for the famous O gasket mod. The stock gasket is D shaped, with an obstruction that extends into the air stream, resulting in a restriction. Our gaskets do not have this restriction, resulting in greater flow and more power.
The O gasket mod has become very popular with the normally aspirated crowd.