MAXPEEDINGRODS CRTQ57 Connecting Rods Conrod AE86 MR2 1.6L 4.803

( Brand: Maxpeedingrods ), ( Manufacturer Part Number: CRTQ57 ), ( Big End Diameter: 45mm ), ( Big End Width: 21.8mm ), ( Bundle Listing: Yes ), ( California Prop 65 Warning: California Prop 65 Warning ), ( Country Of Origin: China ), ( Fitment Type: Performance/custom ), ( Hp: Around 600-800hp ), ( Manufacturer Warranty: 2 Years ), ( Material: Steel ), ( Note: Instruction Included ), ( Notice: This Is Aftermarket Replcement Part ), ( Pin Type: Bronzed Bushing Floating Pin ), ( Quantity: Set Of 4 Pieces ), ( Rod Length: 122mm ), ( Small End Diameter: 20mm ), ( Surface Finish: Brand New ), ( Type: Connecting Rod Set ), ( Weight Tolerance: Balanced To / 1 Gram In Set )

Review MAXPEEDINGRODS Connecting Rods Conrod Toyota 4ag Mr2 1.6l 4.803 Inch fits COROLLA CELICA 4AGE

The **Maxpeedingrods CRT-Q57 connecting rod** is a meticulously engineered, high-performance aftermarket component designed specifically for Toyota s legendary 4AG and 4AGE 1.6L inline-four engines, found in iconic models like the AE86 Corolla, TRD Corolla, and MR2. Crafted from premium **forged 4340 steel**, this connecting rod is built to withstand the extreme stresses of forced induction, high RPM operation, and aggressive driving conditions, making it an ideal upgrade for both street and track applications. The **CRT-Q57** features a **4.803-inch (121.97mm) big-end width**, perfectly matching the stock dimensions while offering enhanced rigidity and durability compared to stock or lower-quality aftermarket rods. Its **precision-machined surfaces** ensure optimal oil flow and reduced friction, minimizing wear and extending engine life even under heavy loads. The rod s **balanced weight distribution** and **optimized geometry** contribute to smoother operation, reduced vibration, and improved power transfer, allowing the engine to rev higher and handle boost pressures more effectively. Whether you're running a turbocharged setup, a supercharger, or simply pushing the limits of your naturally aspirated AE86, these rods provide the structural integrity and reliability needed to push performance boundaries without compromising longevity. Built to exacting standards and rigorously tested for strength, the **Maxpeedingrods CRT-Q57** is a premium choice for enthusiasts seeking a direct, bolt-on upgrade that elevates both performance and durability in Toyota s timeless 4AG/4AGE engines.

### **Pros and Cons of Buying Maxpeedingrods CRTQ57 Connecting Rods for the Toyota 4AG/4AE 1.6L Engine**

1. **Enhanced Durability** The **CRTQ57** rods are forged from high-quality **4340 chromium-molybdenum steel**, which offers superior strength and resistance to fatigue compared to stock rods. This makes them ideal for high-performance applications, including forced induction (turbo/supercharger) and aggressive driving.

2. **Lightweight Design** While still robust, these rods are **lighter than stock**, reducing reciprocating mass. This can improve engine balance, reduce stress on the crankshaft, and potentially allow for higher RPM performance.

3. **Compatibility with Stock Dimensions** The **CRTQ57** rods are designed to fit the **Toyota 4AG/4AE 1.6L engine** (AE86 Corolla, MR2, Celica) with **stock bore spacing (70mm)** and **crankshaft journal sizes**. They maintain the same **big-end and little-end dimensions** as OEM rods, ensuring compatibility with stock bearings and pistons (though upgraded pistons may be recommended for full performance gains).

4. **Aftermarket Support & Tuning Potential** These rods are part of Maxpeedingrods **high-performance rod kit**, which is often used in **turbocharged, supercharged, or nitrous-injected** builds. They are well-supported by tuning communities and can pair well with **ECU upgrades** for optimal performance.

5. **Reduced Risk of Rod Failure** Forced induction significantly increases stress on rods. Upgraded rods like these **lower the risk of catastrophic failure** under heavy loads, making them a safer choice for modified engines.

6. **Easy Installation** Maxpeedingrods rods come with **pre-drilled and tapped holes** for easy installation, and they are **direct replacements** for stock rods, requiring minimal modification to the engine block.

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1. **Cost** These rods are **not cheap**, typically ranging between **$150 $250 per rod** (depending on quantity and retailer). A full set (4 rods) can cost **$600 $1,000 **, which is a significant investment compared to stock or budget aftermarket options.

2. **Requires Supporting Modifications** Simply installing these rods **without other upgrades** (such as **stronger pistons, crankshaft, bearings, and a tuned engine**) may not yield significant performance gains. They are best used in **full engine builds** rather than as a standalone upgrade.

3. **Installation Complexity** While not extremely difficult, **rod replacement requires disassembly of the engine**, including removing the crankshaft, pistons, and bearings. This is a **labor-intensive job** best left to experienced mechanics unless you have prior engine work experience.

4. **Potential for Overkill on Stock Engines** If your engine is **stock or lightly modified**, the benefits of these rods may be **marginal**. They are optimized for **high-stress applications**, so a stock daily driver may not see meaningful improvements.

5. **Warranty & Stock Engine Concerns** Installing aftermarket rods **voids Toyota s factory warranty** on the engine. Additionally, if the engine is **not properly supported** (e.g., weak crank, soft bearings, or improperly matched pistons), the rods may still fail under extreme stress.

6. **Limited Availability & Lead Times** As a **specialty performance part**, these rods may not be in stock at all retailers. Ordering directly from Maxpeedingrods or authorized dealers could result in **longer wait times** compared to mass-produced aftermarket parts.

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### **Conclusion & Recommendation**

The **Maxpeedingrods CRTQ57 connecting rods** are a **high-quality, performance-oriented upgrade** for the **Toyota 4AG/4AE 1.6L engine**, particularly in **turbocharged, supercharged, or nitrous applications**. They offer **superior strength, durability, and lightweight benefits** that justify their cost when used in **serious engine modifications**.

However, they are **not a "quick fix"** they require **complementary upgrades** (pistons, crank, bearings, tuning) to reach their full potential. For **stock or mildly modified engines**, the return on investment may be **limited**, and cheaper aftermarket rods (or even stock rods in good condition) might suffice.

#### **Who Should Buy Them?**

**Turbocharged/Supercharged Builds** If you re running **forced induction**, these rods are a **smart investment** to prevent rod failure under high boost.

**Nitrous Oxide (N2O) Applications** The extra strength helps mitigate the **spiking stress** from nitrous injections.

**High-RPM or Aggressive Driving** If you push the engine to **high RPMs frequently**, these rods reduce the risk of catastrophic failure.

**Full Engine Rebuilds** If you re **completely rebuilding** the engine with **upgraded pistons, crank, and bearings**, these rods are a **logical choice**.

#### **Who Should Consider Alternatives?**

**Stock or Mildly Modified Engines** If your engine is **stock or only lightly modified**, the cost may not be justified.

**Budget-Conscious Builders** If you re on a **tight budget**, look for **aftermarket rod kits** (e.g., **JE, ARP, or budget brands**) that offer a **similar strength-to-cost ratio**.

**Non-Performance Applications** If you re **not pushing the engine hard**, stock rods (in good condition) may last just as long.

If you are **seriously modifying your 4AG/4AE engine with forced induction or aggressive tuning**, the **Maxpeedingrods CRTQ57 rods are an excellent choice** they provide **peace of mind** against rod failure and improve long-term reliability. However, **pair them with a full engine support package** (strong pistons, crank, bearings, and tuning) to maximize performance.

For **stock or lightly modified engines**, consider **cheaper aftermarket rods** or **stock rods in good condition** to save money without sacrificing reliability.

Would you like recommendations on **complementary upgrades** (pistons, crankshafts, bearings) to pair with these rods?

Details:

One Year Unlimited Mileage Quality Guarantee. Pin Type: Floating Piston. H-Beam Design: helps improve stiffness, reduce stress risers and weight. High Precision Control: Balanced within: /- 1 gram per rod.

XZMAL Connecting Rods Conrod for Toyota 4AG 4AGE Corolla AE86 Celica MR2 1.6L 4.803. Boxes, APO/FPO addresses, or Military Mail Boxes. Horsepower Rating: Advertised horsepower rating: 600HP-800HP. Bores finished to: /- .005mm or .0002.

Our representatives will provide you with detailed instructions on how to proceed.

part #: crtq57 prices

• $365.91-$366.99

specifications pistonrinro:

• for models: 4age, Corolla, Celica
• for makes: Toyota
• brand: Maxpeedingrods
• mpn: Crtq57
• big end diameter: 45mm
• big end width: 21.8mm
• bundle listing: Yes
• california prop 65 warning: California Prop 65 Warning
• country of origin: China
• fitment type: Performance/custom
• hp: Around 600-800hp
• manufacturer warranty: 2 Years
• material: Steel
• note: Instruction Included
• notice: This Is Aftermarket Replcement Part
• pin type: Bronzed Bushing Floating Pin
• quantity: Set Of 4 Pieces
• rod length: 122mm
• small end diameter: 20mm
• surface finish: Brand New
• type: Connecting Rod Set
• weight tolerance: Balanced To / 1 Gram In Set

general pistonrinro:

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

shipping pistonrinro:

• service: FedEx Ground / FedEx Home Delivery
• carrier: FedEx
• transit: 2-4 Days
• cost: $0.00
• class: Standard
• type: Fixed

payments pistonrinro:

• other
• credit card: Diners-club
• wallet: Google-pay

returns pistonrinro:

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

offer pistonrinro:

• best offers: True
• availability: In Stock
• started: May 18, 2026
• quantity: 4
• options: Ship-to-home
• sold: 0

seller pistonrinro:

• # reviews: 1980
• city: Rowland height, California
• rating: 99.8%

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