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high compression
Redesigned Compressor Wheel: Improved aerodynamics for up to 20% more horsepower
Whether you’re building a track-focused S55 or a high-horsepower street car
Stronger magnetic circuit offers stable operation up to 10 bar
Step 3: Tighten to 60 ft-lbs
BMW S54 Race Valve Spring Kit crown high compression5150 AutoSport Pro Xtreme Valve Springs for BMW S54 Engines 5150 AutoSport Pro Xtreme Valve Springs, designed specifically for BMW S54 engines. Whether you're building a high performance street car, road race setup, or turbocharged application, these valve springs are engineered to deliver stable and reliable valve control up to 8500 RPM. Available as a complete kit including valve springs, seats, and steel retainers, or as springs only, allowing
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