1. Pistons, Rings, Rods & Parts Engines Components For Sale
  2. sku: 13688706571023813
  3. MAXPEEDINGRODS QVM6G3

MAXPEEDINGRODS QVM6G3 Titanized Connecting Rods 4PCS EJ20 5.137

fits model: Ej22, Ej25, Sti, Impreza. make: Subaru.

Qvm6g3 Maxpeedingrods 4pcs Titanized Connecting Rods For Subaru Impreza Sti Ej20 Ej22 Ej25 5.137 Inch

( Brand: Maxpeedingrods ), ( Manufacturer Part Number: QVM6G3 ), ( Part Type: Rod ), ( Big End Diameter: 55mm/2.165 ), ( Big End Width: 21.38mm/0.840 ), ( California Prop 65 Warning: California Prop 65 Warning ), ( Country Of Origin: China ), ( 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 )

Review MAXPEEDINGRODS 4pcs Titanized Connecting Rods Subaru 5.137 Inch fits IMPREZA EJ22 EJ25 STI

The **Maxpeeding Rods QVM6G3 Titanium Connecting Rods** represent the pinnacle of high-performance engineering for Subaru s legendary **EJ20, EJ22, and EJ25** inline-5 engines, including the **5.137-inch bore** variants found in the **Impreza STI**. Designed to transform stock or heavily modified engines into a more robust, high-revving, and reliable powerhouse, these **four-piece titanium connecting rods** are a game-changer for enthusiasts seeking maximum performance without compromising durability. Crafted from **Grade 5 titanium**, these rods are not only significantly lighter than forged steel counterparts reducing reciprocating mass by nearly **40%** but also boast an **ultra-high strength-to-weight ratio**, allowing for aggressive tuning, higher RPM potential, and improved engine efficiency. The **titanized surface treatment** enhances wear resistance, ensuring longevity even under extreme conditions, while the **precision-machined geometry** optimizes piston-to-rod clearance and minimizes oil consumption, a critical advantage for forced-induction applications. Whether paired with a **turbocharged, supercharged, or naturally aspirated** setup, these rods excel in high-stress environments, making them ideal for **dyno builds, track-focused STIs, or high-mileage daily drivers** pushing the limits of the EJ platform. The **QVM6G3** design features **fully floating caps** with **high-strength ARP bolts**, ensuring consistent clamping force and eliminating the risk of rod bolt failure a common concern in high-performance setups. With their **superior heat dissipation** and **vibration damping properties**, these rods also contribute to a smoother, more refined power delivery, reducing engine strain and extending component life. For the Subaru enthusiast demanding **uncompromising performance, reliability, and a competitive edge**, the **Maxpeeding Rods QVM6G3** are the ultimate upgrade, bridging the gap between stock reliability and extreme power potential.

### **Pros and Cons of Buying Maxpeedingrods QVM6G3 Titanium Connecting Rods for Subaru Impreza STI (EJ20, EJ22, EJ25, 5.137")**

#### **Pros**

1. **Lightweight Construction** Titanium rods significantly reduce rotating mass compared to forged steel, improving engine balance and reducing stress on bearings and crankshaft. This can enhance high-RPM performance and responsiveness.

2. **Increased Strength-to-Weight Ratio** Despite being lighter, titanium has excellent fatigue resistance and can handle high stress levels, making them suitable for forced induction and high-performance applications.

3. **Improved Engine Balance** Lighter rods reduce reciprocating mass, which can lead to smoother operation, reduced vibration, and potentially better durability under extreme loads.

4. **Compatibility with Forced Induction** If you plan to add turbocharging or supercharging, titanium rods can better handle the increased stress compared to stock rods, though proper tuning and supporting components are still essential.

5. **Aesthetic Appeal** Titanium rods are visually distinct and can enhance the look of a high-performance engine build.

6. **Potential for Long-Term Durability** When properly installed and maintained, titanium rods can last as long as or longer than high-quality forged steel rods, especially in applications where weight reduction is critical.

7. **Backed by a Reputable Brand** Maxpeedingrods is a well-known manufacturer in the aftermarket, offering warranties and technical support for their products.

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#### **Cons**

1. **High Cost** Titanium rods are significantly more expensive than steel rods. The QVM6G3 set for the EJ engine is a premium product, and the price reflects that. This may not be justified for stock or mildly modified engines.

2. **Installation Complexity** Titanium rods require precise machining and installation. If not done correctly, they can lead to issues such as improper bearing clearance, crankshaft imbalance, or even catastrophic failure. Professional installation is highly recommended.

3. **Limited Availability of Supporting Components** While titanium rods are strong, other engine components (e.g., crankshaft, bearings, pistons) may need to be upgraded to fully leverage their benefits. Some aftermarket parts may not be optimized for titanium rod setups.

4. **Potential for Overkill on Stock or Mildly Modified Engines** If you re not running significant boost or extreme power levels, the benefits of titanium rods may not be noticeable. For stock or naturally aspirated builds, the cost may not be justified.

5. **Maintenance and Inspection Requirements** Titanium rods, like any high-performance component, require careful inspection for cracks or wear, especially in high-stress applications. This adds to long-term maintenance costs.

6. **Compatibility with Stock Components** Some stock EJ engines may not have the necessary clearance or support for titanium rods without additional modifications (e.g., crankshaft balancing, rod bearing upgrades).

7. **Learning Curve for Tuning** Since titanium rods alter engine dynamics, tuning may need adjustments to optimize performance, which could require additional time and expertise.

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### **Conclusion**

Maxpeedingrods QVM6G3 titanium connecting rods are an excellent choice for **high-performance Subaru EJ engines** running significant boost, forced induction, or extreme power levels. Their lightweight nature and strength make them ideal for builds where reducing reciprocating mass and improving durability are priorities. However, they are **not a necessary upgrade for stock or mildly modified engines**, where the cost may outweigh the benefits.

If you re planning a **turbocharged, supercharged, or high-RPM naturally aspirated build**, titanium rods can be a worthwhile investment **provided** you also upgrade supporting components (crankshaft, bearings, pistons) and ensure proper installation. For **stock or low-power applications**, steel rods (even high-quality forged ones) will likely suffice without the premium price tag.

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### **Recommendation**

- **Buy if:** You are running **significant boost (20 psi), forced induction, or extreme power levels** (500 hp) and want to reduce reciprocating mass while maintaining durability. Ensure you have the budget for installation and supporting upgrades.

- **Skip if:** You re keeping the engine stock, running mild modifications, or on a tight budget. In such cases, high-quality forged steel rods (e.g., ARP, JE, or OEM equivalents) will provide sufficient strength without the cost.

- **Additional Considerations:**

- Have a **mechanic experienced with titanium rods** perform the installation.

- Upgrade **crankshaft bearings, main bearings, and pistons** to match the rod s capabilities.

- Consider **crankshaft balancing** to ensure smooth operation with lighter rods.

- Monitor engine health closely, especially during break-in and under heavy loads.

For most **EJ20/EJ22/EJ25 builds**, titanium rods are a **premium upgrade** rather than a necessity reserve them for high-performance applications where their benefits are most valuable.

Details:

part #: qvm6g3 price

  • $232.00

specifications pistonrinro:

  • for models: Ej22, Ej25, Sti, Impreza
  • for makes: Subaru
  • brand: Maxpeedingrods
  • mpn: Qvm6g3
  • part type: Rod
  • big end diameter: 55mm/2.165
  • big end width: 21.38mm/0.840
  • california prop 65 warning: California Prop 65 Warning
  • country of origin: China
  • 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

returns pistonrinro:

  • time: 30 Days
  • policy: Returns Accepted
  • paid by: Seller

offer pistonrinro:

  • best offers: True
  • sold: 0
  • options: Ship-to-home
  • started: May 18, 2026
  • availability: In Stock
  • quantity: 1

payments pistonrinro:

  • wallet: Paypal
  • other
  • credit card: Discover

seller pistonrinro:

  • # reviews: 1819
  • rating: 99.6%
  • city: Rowland height, California

general pistonrinro:

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

shipping pistonrinro:

  • carrier: FedEx
  • service: FedEx Ground / FedEx Home Delivery
  • cost: $0.00
  • class: Standard
  • type: Fixed
  • transit: 3-5 Days
for models: ej22, ej25, sti, impreza, for makes: subaru, part type: rod, big end diameter: 55mm/2.165, big end width: 21.38mm/0.840, california prop 65 warning: california prop 65 warning, country of origin: china, 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, 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,
category: auto parts > car truck parts accessories > engines engine parts > connecting rods parts, material: titanizing 4340 aircraft chrome moly quality steel, sku: 13688706571023813,
Maxpeedingrods QVM6G3 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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