BMW 5 Series

naturally aspirated engines developed by Mazda

Comprised of multiple layers of stainless steel

and improved resolution for ignition timing

68 A/R with 3 5/8" V-Band discharge

5150 Xtreme Duty Cylinder Sleeve Set, BMW S85 11247646892 BMW 5 Series5150 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,