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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