The Supertech exhaust valve is a single sodium-filled Inconel unit sized 29 x 5.95 x 114.9 mm, made for improved heat handling in exhaust ports. Its dish profile and sodium fill aid thermal transfer under high load. Supplied as a single replacement and available drop-ship, this valve is specified for BMW N53 engine applications requiring a dish-style Inconel exhaust valve.
Supertech BMW N53 29x5.95x114.9mm Dish Sodium Filled Inconel Exhaust Valve - Single (Drop Ship Only)