https://www.amazon.com/dp/B09WC7Z4H2?psc=1&ref=ppx_yo2ov_dt_b_product_details

Covers all 4 cats and has free shipping.

Anybody that wants a link.

TPFI Catalytic Converter Shield Guard, Fits Toyota Tundra Catalytic Converter Shield 2007-2021 https://www.amazon.com/dp/B09G5F3WC7/ref=cm_sw_r_cp_api_i_MYPXGV93AGWPZ1A771P4?_encoding=UTF8&psc=1

Here’s a full size that covers the rear cats.

TPFI Catalytic Converter Shield Guard FULL_SIZE, Fits Toyota Tundra Catalytic Converter Shield 2007-2021 https://www.amazon.com/dp/B09WC7Z4H2/ref=cm_sw_r_awdo_BR6N7ZKR8CZN6VJT529M