(2) Turbo Oil Drain Fittings with Bolts25

Adjustable noise thresholds

285°/280° stage 2 racing cams for professionally built BMW Gen 1 B58 engine making 750hp-1000hp

shot peening

BMW S58 Valve Springs by SuperTech WD10Cap (2) Turbo Oil Drain FittingsSuperTech delivers top tier valve spring kits specifically engineered for BMW S58 engines, designed to enhance valve control and boost reliability under demanding conditions. These kits come complete with a set of high performance valve springs and all necessary components for a straightforward installation. Designed to excel in high performance applications, Supertech valve spring kits are favored by performance enthusiasts, tuners, engine builders,