Stainless steel alloy 45mm oversized exhaust valve for 2.0 Alfas with standard  9mm stems. This 1mm oversize does not require oversized seats in the head since the standard seat is 45.5mm.

Our 45/41mm oversize valve combo has done wonders for both street performance and race engines. Our test engines with these valves have produced 170 street and 200 race HP on our conservative Dyno.

These features dramatically improve flow.

• 1mm larger window
• 45 degree seating
• Reduced 8mm stem exposed diameter in port
• Special shape on back side of valve
• Special swirl pattern on back side

Click here to see our 9 mm special valve guides.

Click here to see our 41 mm companion oversized exhaust valve.