5150 Xtreme Duty Cylinder Sleeve Set, BMW S54 11340039494 SuperTech valves are renowned among

SuperTech valves are renowned among engine builders for their exceptional quality and engineering

and they have proven to be a top performer in both street and racing BMW B48 engines

Triple Groove Valve Design

these engines have gained popularity among enthusiasts for engine swaps into different chassis

Whether for turbocharged

5150 Xtreme Duty Cylinder Sleeve Set, BMW S54 11340039494 SuperTech valves are renowned among5150 Xtreme Duty Cylinder Sleeves, also known as cylinder liners, are centrifugally cast, ductile iron cylinder sleeves. Benefits of Engine Sleeving Include: Increased Bore Size: Sleeving your engine gives the opportunity to increase bore size for higher displacement and increased engine capacity, resulting in more power and more torque Increased Strength: Iron sleeves are stronger than alusil when subjected to high power, high stress applications,