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Manley Performance Manley Subaru WRX / STI (EJ18/20/22/25) H Beam Connecting Rod Set
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Manley Subaru WRX / STI (EJ18/20/22/25) H Beam Connecting Rod Set

MAN14024-4
807298017037
Connecting Rods - 4Cyl
Out of stock
$ 615.85 $ 554.27

SKU: 14024-4 | UPC: 807298017037

Manley Subaru WRX STI EJ18/20/22/25 H-Beam Connecting Rod Set 2002-2021

Manley H-Beam Connecting Rod Set strengthens EJ-series engines in Subaru WRX and STI models for boosted power. Forged 4340 steel construction with ARP 2000 bolts supports up to 800+ HP while maintaining stock dimensions for direct installation. Precision machining reduces vibration and ensures consistent performance on track or street.

Key Features

  • H-Beam Design: Increases rigidity and fights fatigue in high-RPM boosted applications
  • 4340 Forged Steel: Heat-treated and shot-peened for maximum durability under extreme loads
  • ARP 2000 Bolts: 3/8-inch cap screws included for secure rod bearing retention
  • Weight Matching: Balanced to ±1.5 grams per rod at 525 grams average for smooth rotation
  • Stock Dimensions: 5.137-inch C-to-C length, 2.165-inch big end bore, 0.9063-inch small end bore fits without modifications

Product Notes

  • Designed for 92.5mm stroke cranks in EJ boxer engines up to 800+ HP with matching parts
  • Magnaflux inspected and stress-relieved for defect-free assembly
  • Shipping weight 5.65 lbs in 12 x 8 x 4 inch box for easy handling

Installation Notes

  • Professional installation recommended.
  • Bolts on to stock crank journals, pistons, and bearings without resizing
  • Includes 8 ARP bolts and nuts, torque to spec during assembly

This Part Fits

Year Make Model Submodel
2002-2014 Subaru Impreza WRX
2006-2007 Subaru Impreza WRX Limited
2010-2014 Subaru Impreza WRX Limited
2009-2014 Subaru Impreza WRX Premium
2004-2014 Subaru Impreza WRX STI
2007 Subaru Impreza WRX STI Limited
2011-2014 Subaru Impreza WRX STI Limited
2010 Subaru Impreza WRX STI Special Edition
2006-2007 Subaru Impreza WRX TR
2004-2021 Subaru Impreza WRX STI
2004-2013 Subaru Forester XT
2005-2012 Subaru Legacy GT
2005-2006 Subaru Legacy Base

Why Choose Manley?

  • Engineered for Subaru EJ builds with tighter tolerances on bend twist and weight
  • Every set undergoes NDT magnaflux and full inspection before packaging
  • Proven design in drag racing and rally applications worldwide

Frequently Asked Questions

  • Q: Will these rods fit my 2008 STI EJ257?
    A: Yes direct fit for EJ257 and all listed EJ18 EJ20 EJ22 EJ25 engines with 92.5mm stroke verify your crank
  • Q: What material and treatment process?
    A: 4340 aircraft-grade steel forged heat-treated stress-relieved shot-peened and magnafluxed
  • Q: Are bolts included and what size?
    A: Yes 8 ARP 2000 3/8-inch cap screws with nuts torque to ARP specs for assembly

Shipping & Handling

  • Method: Standard ground via UPS or FedEx
  • Availability: In stock - ships same or next business day
  • Packaging: 12 x 8 x 4 inches compact protective box
  • Weight: 4.63 lbs product weight 5.65 lbs shipping weight
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