professional builders

The S14 engine was first introduced in 1986 and remained in production until 1991

This feature helps prevent catastrophic engine failure during oil pressure loss

The manifold was designed not only for optimum flow

BMW M54 Connecting Rod Set by Manley H-Beam Supra professional buildersManley H Beam Connecting Rods for BMW M54 Engines Available at 5150 AutoSport Manley Performances H Beam Connecting Rod Set offers exceptional strength, precision, and reliability for BMW M54 engines. Crafted from 4340 forged steel, these rods are built to withstand the high stresses of forced induction and high RPM tuning. Engineered with a 135mm rod length, they are designed to replace OEM part #11241247175and #11241744315, making them a direct fit