1. Pistons, Rings, Rods & Parts Engines Components For Sale
  2. sku: 12379871000478713
  3. MAXPEEDINGRODS 7Y4P6B

MAXPEEDINGRODS 7Y4P6B Beam Connecting Rods Set 4PCS EJ20 2.0L 2.5L

fits model: Ej25, Sti, Impreza. make: Subaru.

7y4p6b Maxpeedingrods 4pcs H-beam Connecting Rods Set For Subaru Impreza Sti Ej20 Ej25 2.0l 2.5l

( Brand: Maxpeedingrods ), ( Manufacturer Part Number: 7Y4P6B ), ( Big End Diameter: 55mm/2.165 ), ( Big End Width: 21.38mm/0.840 ), ( California Prop 65 Warning: California Prop 65 Warning ), ( Manufacturer Warranty: 2 Years ), ( Material: Steel ), ( Note: No Instruction Included ), ( Notice: This Is Aftermarket Replcement Part ), ( Pin Type: Bronzed Bushing Floating Pin ), ( Rod Length: 130.5mm/5.137 ), ( Small End Diameter: 23mm/0.905 ), ( Type: Connecting Rod Set ), ( Weight Tolerance: Balanced To / 1 Gram In Set )

Review MAXPEEDINGRODS 4pcs H beam Connecting Rods Set Subaru 2.0l 2.5l fits IMPREZA EJ25 STI

The **Maxpeeding Rods 7Y4P6B 4-Piece H-Beam Connecting Rod Set** represents a cutting-edge upgrade for the high-performance enthusiast seeking to maximize power, reliability, and durability in their Subaru Impreza STI with either the **EJ20** or **EJ25** 2.0L or 2.5L engine. Designed with precision engineering and forged from premium **7075-T6 aluminum alloy**, these rods are not merely replacements they are a performance-enhancing solution tailored to withstand the extreme stresses of aggressive driving, forced induction, or high-revving applications. The **H-beam cross-section** is a hallmark of Maxpeeding Rods design philosophy, offering an optimal balance between strength and weight savings. This geometry distributes forces more evenly across the rod, reducing bending and torsional stresses while maintaining exceptional rigidity, which is critical for engines pushing beyond factory limits. Each rod is **fully machined and dynamically balanced** to ensure smooth operation and minimize vibration, even under heavy loads or at elevated RPMs. The **7Y4P6B set** is specifically engineered to fit the Subaru EJ platform, featuring precise **big-end and small-end bearings** that are pre-oiled and ready for installation, eliminating the hassle of additional lubrication steps. Whether you re running a turbocharged setup, a supercharger, or simply pushing the stock engine to its limits, these rods provide the structural integrity needed to handle increased cylinder pressures and torque without compromising on performance. Built to meet or exceed OEM specifications while offering superior fatigue resistance, the Maxpeeding Rods set is an ideal choice for those looking to future-proof their engine against the demands of high-performance driving. With meticulous attention to detail from the **optimized rod length and offset** to the **high-quality nitrided steel bolts** included in the package this connecting rod set is a testament to Maxpeeding Rods commitment to delivering components that elevate both power and reliability in the most demanding applications.

### **Pros and Cons of buying a Maxpeedingrods 7Y4P6B 4-Piece H-Beam Connecting Rods Set for Subaru Impreza STI (EJ20/EJ25, 2.0L/2.5L)**

#### **Pros:**

1. **Enhanced Strength and Durability** H-beam connecting rods are engineered to distribute stress more evenly across the rod, reducing the risk of catastrophic failure under extreme loads. This is particularly beneficial for high-performance builds, drift applications, or aggressive driving styles.

2. **Improved Reliability for Forced Induction** If you plan to run turbocharging or supercharging, these rods can better handle the increased cylinder pressures compared to stock rods, which are often weaker and more prone to bending or breaking under stress.

3. **Better Weight Distribution** The H-beam design helps reduce rod weight while maintaining stiffness, which can improve engine balance and reduce vibration, especially in high-RPM applications.

4. **Compatibility with High-Torque Modifications** If you re running a larger turbo, aggressive camshafts, or a high-flow exhaust, these rods can help prevent rod bending or failure that might occur with stock components.

5. **Aftermarket Support and Tuning Potential** Since these rods are designed for performance, they pair well with other aftermarket upgrades (e.g., forged pistons, stronger crankshafts, or high-flow internals), allowing for more aggressive tuning without immediate failure risks.

6. **Warranty and Reputation** Maxpeedingrods is a well-regarded brand in the aftermarket performance community, offering quality materials and manufacturing. Their rods come with warranties, which can provide peace of mind.

7. **Potential for Increased Power Output** By reducing the risk of rod failure, these rods allow you to push your engine harder without constant fear of catastrophic damage, enabling more power extraction from your build.

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#### **Cons:**

1. **Cost** These rods are significantly more expensive than stock rods, often costing several hundred dollars for a full set. This can be a major investment, especially for enthusiasts on a budget.

2. **Installation Complexity** Replacing connecting rods requires removing the crankshaft, pistons, and other internals, which is a labor-intensive process. If you re not experienced with engine disassembly, you may need to pay a mechanic, adding to the cost.

3. **Potential for Overkill** If your build is relatively mild (e.g., stock or lightly modified), these rods may be unnecessary. Stock rods can last for hundreds of thousands of miles with proper maintenance, and upgrading to H-beams might not be justified unless you re pushing the engine aggressively.

4. **Compatibility Considerations** While these rods are designed for the EJ20/EJ25, you must ensure they match your specific engine configuration (e.g., stroke length, piston type, and crankshaft bearing journals). Mismatched components can lead to issues like rod bearing clearance problems.

5. **Maintenance and Break-In Period** New rods, especially aftermarket ones, may require a careful break-in process to prevent premature wear. This includes avoiding excessive RPMs or loads during initial runs.

6. **Potential for Voiding Warranty** If your vehicle is still under manufacturer warranty, installing aftermarket rods may void certain coverage, especially if the failure is attributed to improper installation or compatibility issues.

7. **Limited Availability of Spare Parts** While Maxpeedingrods is reputable, if you encounter issues down the line, finding replacement parts or support may be harder than with OEM components.

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### **Conclusion:**

The **Maxpeedingrods 7Y4P6B H-beam connecting rods** are a **high-quality, performance-focused upgrade** that significantly enhances the reliability and durability of your Subaru EJ20/EJ25 engine, particularly under forced induction or high-stress conditions. They are ideal for **drift builds, turbocharged applications, or aggressive tuning projects** where stock rods would be insufficient.

However, they are **not a necessary upgrade for stock or mildly modified engines**, as stock rods can last for many years with proper maintenance. The **high cost, installation difficulty, and potential overkill** for mild builds must be carefully considered before purchasing.

If you re **seriously pushing your engine s limits** (e.g., 500 HP, frequent drifting, or extreme modifications), these rods are a **strong recommendation** to prevent catastrophic failure. For **casual enthusiasts or those with modest builds**, the investment may not be justified, and stock rods or lighter aftermarket options (e.g., forged rods) could suffice.

### **Final Recommendation:**

- **Buy if:** You re running a **turbocharged, supercharged, or heavily modified EJ20/EJ25** and want **maximum reliability under extreme loads**. Pair them with **forged pistons, a stronger crankshaft, and proper lubrication** for best results.

- **Skip if:** Your build is **stock or lightly modified**, and you re not pushing the engine to its limits. In that case, stick with **stock rods or a more budget-friendly aftermarket option** unless you have a specific need for H-beam strength.

- **Consider alternatives:** If H-beams are too expensive, look into **forged steel rods** (e.g., ARP, JE, or other brands) or **aftermarket rods with similar strength ratings** that may fit your budget better. Always ensure **proper installation** by an experienced mechanic.

Details:

Shot-preened finish to remove potential for stress risers, 6.High precision CNC machined,Precision rod cap alignment dowels, 7.Bores finished /- .005mm, 8.Balanced within 1per rod, 9.guaranteed Fitment. For Subaru Impreza WRX STI EJ20 EJ22 EJ25 Engine, Legacy Forester 2.0L Turbo EJ205 Engine 2002 - 2005, STi EJ207 1998 -present, 2.5L EJ255 2006 -2014, EJ257 2004 -2016, Saab 9-2X 2005 - 2006, Isuzu Asoka 1990 -1993, for 1989 -2009, SF series 1997 - 2002 , XT 2004 -2013, Outback 2005, 2007 -2009, Impreza 95-01, 95-96, Pin Type: Floating Piston. Fast Shipping.

Quick, Simple. V PRODUCT TEST AND ISO 9001 CERTIFIED, manufacturer. Always the correct part.

Advertised Horsepower Rating:200HP/piece, Top acceleration: 9000rpm, package size 28CM 21CM 10CM.

part #: 7y4p6b price

  • $232.00

specifications pistonrinro:

  • for models: Ej25, Sti, Impreza
  • for makes: Subaru
  • brand: Maxpeedingrods
  • mpn: 7y4p6b
  • big end diameter: 55mm/2.165
  • big end width: 21.38mm/0.840
  • california prop 65 warning: California Prop 65 Warning
  • manufacturer warranty: 2 Years
  • material: Steel
  • note: No Instruction Included
  • notice: This Is Aftermarket Replcement Part
  • pin type: Bronzed Bushing Floating Pin
  • rod length: 130.5mm/5.137
  • small end diameter: 23mm/0.905
  • type: Connecting Rod Set
  • weight tolerance: Balanced To / 1 Gram In Set

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general pistonrinro:

  • Car Truck Parts Accessories > Engines Engine Parts > Connecting Rods Parts
  • condition: New

offer pistonrinro:

  • sold: 0
  • availability: In Stock
  • options: Ship-to-home
  • started: February 13, 2026
  • best offers: True

seller pistonrinro:

  • # reviews: 735
  • rating: 98.9%
  • city: Dayton, New Jersey

shipping pistonrinro:

  • transit: 5-8 Days
  • carrier: FedEx
  • class: Standard
  • type: Fixed
  • cost: $0.00
  • service: FedEx Ground / FedEx Home Delivery

returns pistonrinro:

  • policy: Returns Accepted
  • time: 30 Days
  • paid by: Seller
for models: ej25, sti, impreza, for makes: subaru, big end diameter: 55mm/2.165, big end width: 21.38mm/0.840, california prop 65 warning: california prop 65 warning, manufacturer warranty: 2 years, note: no instruction included, notice: this is aftermarket replcement part, pin type: bronzed bushing floating pin, rod length: 130.5mm/5.137, small end diameter: 23mm/0.905, type: connecting rod set, weight tolerance: balanced to / 1 gram in set,
category: auto parts > car truck parts accessories > engines engine parts > connecting rods parts, material: steel, sku: 12379871000478713,
Maxpeedingrods 7Y4P6B Is Similar To:
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1 offer $232.00 USD
  • New other (see details). Offer #1 priced at $232.00 + $20.00 shipping estimate = $252.00* total. Forged 4340 steel. Item: MaxpeedingRods Forged Connecting Rods.+$20.00 shipping

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