Dual Springs expand pressure range while maintaining a low profile and reduced weight

and Alpina B3 Bi-Turbo

CP-Carrillo pistons are the best choice for any S14 2

improve airflow

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5150 AutoSport High Performance Main Bearing Set, BMW S58 E85 Dual Springs expand pressure rangeDesigned specifically for high performance engine builds, the 5150 High Performance Coated Main Bearing Set for BMW S58 engines offers exceptional reliability and durability. Each bearing is treated and coated by Calico, significantly reducing friction and enhancing engine efficiency. This advanced coating technology allows the engine to generate more power while resisting "spinning" under extreme conditions, making it an ideal choice for racing and