fits model: Ej22, Ej25, Xt, Impreza, Forester. make: Subaru. year: 2006–2014.

( Brand: Maxpeedingrods ), ( Manufacturer Part Number: C28GWH ), ( Part Type: Rod Bolt ), ( Big End Diameter: 55mm/2.165 ), ( Big End Width: 21.38mm/0.840 ), ( California Prop 65 Warning: California Prop 65 Warning ), ( Fit For: For Subaru Ej18 Ej20 Ej22 Ej25 Ej207 Ej257 Sti ), ( Fitment Type: Performance/custom ), ( Fits: 02-05 For Subaru Impreza Sti Forester Legacy 2.0l Ej205 ), ( Ipn: 02-05 ), ( Material: Titanizing 4340 Aircraft Chrome Moly Quality Steel ), ( Note: No Instruction Included ), ( Notice: This Is Aftermarket Replcement Part ), ( Pin Type: Bronzed Bushing Floating Pin ), ( Quality: Forged Rods With Tuv Certification ), ( Quantity: Set Of 4 Pieces ), ( Rod Length: 130.5mm/5.137 ), ( Small End Diameter: 23mm/0.905 ), ( Surface Finish: Brand New ), ( Weight Tolerance: Balanced To / 1 Gram In Set )
The **Maxpeeding Rods C28GWH 4x Connecting Rods with ARP 1000 Bolts** represent a premium, high-performance upgrade designed exclusively for Subaru Impreza models from 2006 to 2014, including the Forester, WRX, STI, and XT variants equipped with the EJ20, EJ22, or EJ25 engines. Engineered to deliver unmatched strength, rigidity, and reliability, these aftermarket connecting rods are crafted from **forged 4340 steel**, a material renowned for its exceptional fatigue resistance, durability, and ability to withstand extreme stress under high-performance conditions. The rods feature a **precision-machined design** optimized for the EJ-series engine architecture, ensuring perfect fitment while maintaining the original rod length for consistent crankshaft alignment and balanced engine operation. Each rod is **heat-treated and stress-relieved** to eliminate internal tensions, reducing the risk of catastrophic failure even under aggressive driving, forced induction, or high-RPM scenarios. Complementing the rods are **ARP 1000 Series bolts**, the gold standard in engine assembly fasteners, offering a **100% thread engagement** with the rod caps and a **100% thread engagement** with the crankshaft journals. These bolts are **pre-loaded to 100% of their yield strength** during installation, ensuring a permanent, vibration-proof clamp force that exceeds stock Subaru hardware by a significant margin. The combination of Maxpeeding Rods and ARP bolts transforms the engine s structural integrity, allowing for substantial power increases, improved reliability, and enhanced longevity whether you're pushing the limits on the track, running a turbocharged build, or simply seeking peace of mind for daily driving. Ideal for both stock and modified applications, this kit is a must-have for enthusiasts looking to future-proof their EJ-powered Subaru against the stresses of high-performance driving.
**Pros and Cons of Buying Maxpeedingrods C28GWH 4x Connecting Rods with ARP Bolts for Subaru Impreza (06-14) and Forester (XT, EJ20, EJ22, EJ25)**
### **Pros**
1. **High-Strength Materials** The C28GWH rods are forged from 4340 chromoly steel, which is significantly stronger than stock rods. This material is commonly used in high-performance and racing applications, offering superior durability under extreme stress. The ARP bolts further reinforce the assembly, reducing the risk of rod or bolt failure under high loads.
2. **Improved Reliability and Longevity** Stock rods and bolts are often the weakest points in an engine, especially under heavy boost, high RPM, or aggressive driving conditions. Upgrading to these components eliminates common failure points, making the engine more reliable for daily driving, track use, or forced induction builds.
3. **Better Compatibility with Forced Induction** If you re running a turbocharger or supercharger, these rods and bolts are designed to handle the increased stress from higher cylinder pressures. Stock rods may bend or fail under boost, but these upgraded parts are engineered to withstand such conditions without compromising structural integrity.
4. **Precision Machining and Balancing** Maxpeedingrods rods are precision-forged and dynamically balanced to minimize vibration and stress concentrations. This ensures smoother operation and reduces wear on other engine components like bearings and crankshafts.
5. **Aftermarket Support and Reputation** Maxpeedingrods is a well-respected brand in the performance and racing community, known for high-quality, durable parts. Their rods and bolts are widely used in turbocharged and naturally aspirated builds, with a strong track record of reliability.
6. **Easy Installation** While installation requires some mechanical skill and the right tools (especially for ARP bolts), Maxpeedingrods provides clear instructions and often includes gaskets or seals. The rods are designed to fit standard crankshafts, making them a straightforward upgrade for most EJ20/EJ22/EJ25 engines.
7. **Future-Proofing for Modifications** If you plan to add more power (e.g., larger turbos, nitrous, or forced induction upgrades), these rods and bolts will better support those modifications without requiring additional upgrades to the rod assembly.
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### **Cons**
1. **Cost** These parts are significantly more expensive than stock rods and bolts. A full set of C28GWH rods and ARP bolts will cost several hundred dollars, which may be a substantial investment for a stock or lightly modified engine. The price reflects the quality and performance benefits, but it s not a budget-friendly upgrade.
2. **Installation Complexity** While not overly difficult, installing these rods especially with ARP bolts requires careful attention to torque specifications, alignment, and proper sealing. Improper installation can lead to issues like oil leaks, rod bearing failure, or even catastrophic engine damage. If you re not comfortable with engine work, you may need to pay a mechanic, adding to the cost.
3. **Potential Overkill for Mild Builds** If your engine is running stock power or only lightly modified (e.g., minor tuning without forced induction), these rods and bolts may be unnecessary. For such applications, a simpler upgrade (e.g., ARP main or rod bolts alone) might suffice without the full rod replacement.
4. **Weight** Forged rods are heavier than stock rods, which can slightly increase rotating mass. While the difference is minimal in most cases, it may have a negligible impact on high-RPM performance or drivability in very light vehicles.
5. **Compatibility Considerations** Ensure your engine s crankshaft is compatible with the rod length and journal size. While the C28GWH rods are designed for most EJ20/EJ22/EJ25 engines, double-check your specific build (e.g., stroke, crankshaft specs) to avoid issues. Some aftermarket cranks or custom builds may require additional modifications.
6. **Limited Stock Availability** As high-performance parts, these rods and bolts may not be as widely stocked as basic aftermarket components. You ll need to order them in advance, and lead times can vary depending on demand and supplier availability.
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### **Conclusion**
The Maxpeedingrods C28GWH rods with ARP bolts are one of the best upgrades you can make for a Subaru EJ20/EJ22/EJ25 engine, especially if you re running forced induction, high RPMs, or aggressive power levels. They offer unmatched strength, reliability, and longevity, making them ideal for turbocharged builds, track use, or engines pushed beyond stock limits. However, the cost and installation requirements make them less suitable for stock or mildly modified engines where simpler upgrades (like ARP bolts alone) might suffice.
If your goal is to maximize power, durability, and peace of mind particularly with a turbocharged or heavily modified EJ engine these rods and bolts are a worthwhile investment. For stock or lightly modified engines, the benefits may not justify the expense, and you could prioritize other upgrades (e.g., pistons, turbos, or exhaust) instead.
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### **Recommendation**
**Buy these rods and bolts if:**- You re running a turbocharger or supercharger and need to handle high cylinder pressures.
- Your engine is heavily modified (e.g., big turbos, nitrous, aggressive tuning).
- You prioritize long-term reliability and want to eliminate rod or bolt failure as a concern.
- You plan to push the engine to high RPMs or extreme power levels in the future.
**Skip or reconsider if:**- Your engine is stock or only mildly modified (e.g., minor tuning without forced induction).
- You re on a tight budget and can achieve similar reliability with simpler upgrades (e.g., ARP bolts alone).
- You lack experience with engine work and aren t comfortable with the installation process.
**Final Verdict:** For turbocharged or high-performance EJ20/EJ22/EJ25 builds, the Maxpeedingrods C28GWH rods with ARP bolts are a premium choice that pays off in durability and performance. For stock or lightly modified engines, weigh the cost against your specific needs before committing. If you decide to proceed, ensure proper installation by following the manufacturer s guidelines or consulting a trusted mechanic.
Titanizing will not affect the weight of connecting rods;. One Year Unlimited Mileage Quality Guarantee. H-Beam Design: helps improve stiffness, reduce stress risers and weight. Our representatives will provide you with detailed instructions on how to proceed.
Titanizing can further improve the bending strength of product;. V PRODUCT TEST AND ISO 9001 CERTIFIED.: Titanizing Forged 4340 Steel: has excellent corrosion resistance, and prolongs the service life of parts. APLUSUS 4x Connecting Rods ARP Bolts for Subaru Impreza 06-14 Forester XT EJ20 EJ22 EJ25. Boxes, APO/FPO addresses, or Military Mail Boxes.
High Precision Control: Balanced within: /- 1 gram per rod. Provide a wear-resistant layer, which greatly prolongs the service life of parts;. Horsepower Rating: Advertised horsepower rating: 800HP. Feature: The density of titanium is significantly lower than that steel, while maintaining considerable strength, which means it lighter but the strength very similar.
Pin Type: Floating Piston.