The Supertech Inconel exhaust valve is specified for Renault Clio RS F4R 16V applications and is supplied as a single valve (drop-ship only). Made from Inconel per the description, it is listed for the F4R 16V head and provided as the exhaust valve option in the stated application, including the single-item supply note.
Supertech Renault Clio RS F4R 16V Inconel Exhaust Valve - Single (Drop Ship Only)