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The billet aluminum adapter is also bright blue anodized to look great and prevent corrosion
While stock bolts fail under pressure
to meet the demands of enthusiasts and professional racers
and M2 models
making it a trusted choice for enthusiasts building high-boost or high-RPM B58 engines
5150 Xtreme Duty Cylinder Sleeve Set, BMW B48 1304260 The billet aluminum adapter is5150 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,
