Supertech BMW M20B25 Inconel Exhaust Valve- +1mm Oversize - Single

This listing is for a single Supertech Inconel exhaust valve designed for BMW M20B25 engines. It's a +1mm oversize valve, meaning it's slightly larger than the stock size to potentially improve flow or compensate for worn valve seats.

Inconel is a high-nickel alloy known for its exceptional strength and resistance to extreme heat and corrosion. This makes it a solid choice for exhaust valves, especially in performance applications where temperatures can get very high. The +1mm oversize dimension is a common modification to help restore compression or gain a bit more airflow in the cylinder head. When rebuilding or upgrading your M20 cylinder head, using a durable material like Inconel for your exhaust valves is a smart move to ensure longevity and consistent performance.