The Supertech sodium-filled Inconel exhaust valve set for Mini Cooper N14B16 / N18B16 engines is supplied as eight valves intended for exhaust-side replacement. The description identifies the valves as sodium-filled Inconel and packaged in an eight-piece quantity suitable for full-bank replacement on compatible N14B16 or N18B16 Mini Cooper engines.
Supertech Mini Cooper N14B16 / N18B16 Sodium Filled Inconel Exhaust Valve - Set of 8