BMW N54B30

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RH-Beam Connecting Rods

RH-Beam stands for reinforced H-beam. H-beam design is very popular due to the good strength and affordable price. The RH-beam is a stronger design based on H-beam from BW engineers. It’s designed for the enthusiasts who preferred H-beam rather than an I-beam without any compromise on performance. It suits for high horsepower and torque. The reinforced straight H-section, stronger structure, and enlarged mating surface make it capable of extreme loading.

– Featured with ARP2000 fasteners.
– Upgrade to ARP L19 fasteners at an additional cost
– Upgrade to ARP Custom Age 625+ fasteners at an additional cost

6-BR-175-043/8"×1.6"145.00 mm53.600 mm20.88 mm22 mm550 g

Epr-design Crankshaft

EPR Series are BW flagship series.

Based on 10+ years crankshaft manufacture experience, BW introduced the EPR-DESIGN Billet crankshaft in 2013. It carries all the benefits that billet has, but with lighter weight and stronger structure.

  • 100% 4-axis CNC profiling 
  • Special Knife-edge counter weight for reducing resistance at high RPM
  • V-style lightening holes machined by 5-axis CNC
  • Undercut counter weight for additional weight reduction

– Standard in premium AISI4340
– Upgrade to EN40B at an additional cost
– Upgrade centerline gundrill hole for super light weight at an additional cost.

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Part#StrokeMain JournalThrust WidthCrank PinWeight
EPR-180A-89.689.60 mm56.000 mm24.00 mm50.000 mm22.7 kg


BMW – 1 Series 2007-2010(E82/E88) 135i

BMW – 1 Series 2011(E82) 1M

BMW – 3 Series 2006-2010(E90/E91/E92/E93) 335i

BMW – 5 Series 2007-2010(E60/E61) 535i

BMW – X6 2008-2010(E71) xDrive35i

BMW – Z4 2009-2016(E89) sDrive35i

Alpina – 2007-2013(E90) B3