NOTE: Because the top of the fuel fill tube should not be higher than the location of this air filter

Available in both naturally aspirated (CA18S) and turbocharged (CA18DET) variants

Compact Yet Powerful

With the inclusion of ARP Connecting Rod Bolts

BMW B58 Gen 2

Viton Valve Stem Seals, BMW S58 BMWSH1-CV-S NOTE: Because the top ofViton Stem Seals for High Performance BMW S58 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 turbocharged