these high-performance valves offer exceptional strength and heat resistance

and vigilance are imperative

5PSI system compatible with manual and DCT

1988      E30     M3 Evo II

Ferrea Competition Plus Valves are widely recognized as one of the most dependable extreme duty valves available

5150 Xtreme Duty Cylinder Sleeve Set, BMW S55 S54B32 these high-performance valves offer exceptional5150 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,