forced induction

- Function: The seal fits tightly around the crankshaft and within the engine housing

2018-Present     G20/G21     318i / 320i / 330i / 330e

The Mishimoto thermostat has a lower activation temperature (154

Street drivers benefit from smoother power delivery with mild upgrades

Viton Valve Stem Seals, BMW N20 / N26 140mm forced inductionViton Stem Seals for High Performance BMW N20 & N26 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