SP Components forged H-beam con-rods for the S54 engine as found in the E46 M3, late Z3M and Z4M.

The high-revving nature of the S54 means that we have seen numerous con-rod failures due to metal fatigue, causing breakages below the small end even on standard engines. When adding greater cylinder pressures, forced induction and/or a higher rev limit it is essential that the rods are upgraded to suit.

SP Components’ forged rods are made to a very high standard with polished cheeks, a great strength to weight ratio and precision balancing. They also come complete with ARP hardware and offer some of the best value to money out there.

For optimum performance, combine with VAC Motorsports Performance Coated Rod Bearings.