BMW Z Series

2005-2010     E60/E61     525i / 525xi / 528i / 528xi / 530i / 530xi

Transform the lug bolts on your BMW

Crossmember is powder coated black for good looks and rust protection

including racing and performance street builds

Viton Valve Stem Seals, BMW N55 / S55 S58 Camshafts BMW Z SeriesViton Stem Seals for High Performance BMW N55 & S55 Engines Viton Stem Seals are engineered to prevent oil from entering the combustion chamber, ensuring optimal engine performance. Crafted from premium Viton material, these seals offer superior control and durability across the entire RPM range. Their compact design allows for clearance in small inside diameter valve springs. Developed to withstand the extreme conditions of high horsepower and