Supertech VW 1.8L/2.0L 8V/16V Sodium Filled Inconel Exhaust Valve - +0.5mm OS - Single (D/S Only)

This listing is for a single Supertech Inconel exhaust valve, specifically designed for VW 1.8L and 2.0L 8-valve and 16-valve engines. It's a +0.5mm oversize valve, intended for the driver's side (D/S) of the engine. These valves are constructed from Inconel, a high-nickel alloy known for its exceptional strength and resistance to extreme heat, making it ideal for exhaust applications where temperatures can get very high.

The valves are also sodium-filled. This advanced feature uses a hollow stem filled with sodium, which melts and circulates as the engine runs. This internal circulation helps to transfer heat away from the valve face and stem more efficiently, keeping the valve cooler and reducing the risk of warping or failure under demanding conditions. The +0.5mm oversize dimension means this valve is slightly larger than stock, which can be useful when rebuilding an engine with worn valve seats or when aiming for improved sealing.