RPM Tuning

RPM Forged High-Boost H-Beam Connecting Rods (BMW N55)

In stock
RM5,850.00 MYR

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Description

Forged H-Beam Connecting Rods + ARP 2000 Bolts

Take your N55 build to the next level with RPM Tuning’s Forged H-Beam Connecting Rods – meticulously engineered for serious power, high boost, and extreme reliability. Whether you're pushing 800+ horsepower on the track or daily driving a high-performance street build, these rods are designed to handle it all.

✅ Why Choose RPM Tuning Forged Rods for Your N55?

Our connecting rods are crafted from 4340 aircraft-grade chrome moly steel, a material known for its exceptional strength-to-weight ratio, fatigue resistance, and dimensional stability under high-stress conditions. Each rod is forged, heat-treated, shot-peened, and precisely CNC machined to meet exacting tolerances - ensuring consistency and peace of mind for demanding tuners.

⚙️ Product Features

🔩 Professional H-Beam Design

  • Optimized for strength and stiffness, the H-beam profile provides excellent resistance to bending and twisting forces at high RPM and high cylinder pressure.

  • Ideal for turbocharged and high-compression builds where load stress is substantial.

🧊 Forged 4340 Chrome Moly Steel

  • Aerospace-grade material forged for maximum density and structural integrity.

  • Heat-treated and shot-peened for superior fatigue resistance and longevity even under extreme detonation or knock scenarios.

🎯 Precision Honed Big End

  • CNC-honed for a true round finish, ensuring tight clearances and improved oil film stability at high engine speeds.

  • Each rod is fully balanced for rotational equilibrium within engine specs.

🟠 Bronze Alloy Bushing – Small End

  • High-grade bronze wrist pin bushings for minimal friction and enhanced wear resistance.

  • Ensures smooth piston movement and longevity in high-load applications.

🔧 Designed for ARP Bolts – 800-1000+ HP Rated

  • Compatible with genuine ARP 2000 Rod Bolts, providing unmatched clamping force and tensile strength under load.

  • Bolts seat perfectly into precision-machined caps with deep locking grooves.

💡 Shot-Peened Finish

  • Surface treated to relieve internal stress points and prevent microscopic crack formation.

  • Adds a layer of fatigue resistance crucial for long-term engine durability.

⚙️ Lighter Weight H-Beam Profile

  • Reduced reciprocating mass compared to factory rods without compromising strength.

  • Contributes to quicker throttle response and engine revving.

📊 Technical Specs Summary:

Spec Detail
Material Forged 4340 Chrome Moly Steel
Design H-Beam
Small End Bushing High-strength alloy bronze
Big End Precision honed, shot-peened
Bolts Compatibility Genuine ARP 2000 / 625+
Horsepower Capability Rated for 800–1000+ hp
Recommended Use High boost, track, drag, high-power street builds


🧩 Compatible With:

  • BMW N55 engines across E-series and F-series platforms:

    • 135i / 335i / 435i

    • M235i / M2 (non-Comp)

    • X3 35i / X4 35i

    • 640i / 740i (N55 variants)

🔥 Ideal Pairing:

Pair with RPM Tuning Forged 4032 Pistons, upgraded bearings, and MLS head gaskets for a complete forged bottom-end build. Perfect for those chasing high boost, track reliability, or long-term engine safety.

Built to rev. Forged to last.
RPM Tuning Connecting Rods for the N55 - the backbone of every reliable high-power build.