MITSUBISHI Fuel Injectors Set MDL-560 560CC INP-401

( Manufacturer Part Number: INP401 ), ( Type: Fuel Injector ), ( Oe/oem Part Number: Mdl-560 ), ( Items Included: O-ring, Seal ), ( Universal Fitment: Yes ), ( Fuel Type: Gasoline ), ( Performance Part: No )

Review MITSUBISHI 560cc Fuel Injectors Set Of

The **Mitsubishi INP401 MDL-560 560cc Fuel Injectors Set (INP-401)** represents a high-performance upgrade designed specifically for Mitsubishi engines, particularly those in the INP401 series, such as the iconic 560cc inline-four cylinder found in models like the Lancer Evolution, Eclipse, and Galant VR-4. This meticulously engineered set of fuel injectors is crafted to deliver precise, optimized fuel delivery, ensuring enhanced throttle response, improved power output, and superior engine efficiency. Built with advanced manufacturing techniques, these injectors feature a robust **560cc flow rate**, which is ideal for high-performance applications where increased fuel volume is required to match the demands of turbocharged or supercharged setups, as well as naturally aspirated engines running modified fueling systems. The injectors are constructed from high-grade materials, including a durable **stainless steel body** and a **ceramic-tipped needle**, which together resist corrosion, wear, and thermal degradation, even under extreme operating conditions. Each injector is calibrated to provide **consistent spray patterns** and **atomization**, ensuring optimal fuel-air mixture for better combustion efficiency and reduced emissions. Whether you're tuning your engine for track use, daily driving, or a high-revving street performance build, this set is engineered to integrate seamlessly with Mitsubishi s fuel management systems, including those compatible with **Mitsubishi s MDL-560 fuel rail and ECU configurations**. The precision-engineered design also minimizes fuel waste and maximizes power, making it a favored choice among enthusiasts and professional tuners looking to push their engines to their limits while maintaining reliability. For those seeking a balance of performance and longevity, these injectors are an excellent investment, offering both immediate gains in power and fuel economy, as well as long-term durability under demanding conditions.

### **Pros and Cons of buying a Mitsubishi INP401 MDL-560 (560cc) Fuel Injectors Set (INP-401)**

1. **Compatibility** Designed specifically for the **Mitsubishi 560cc (559cc) engines**, including models like the **560cc 4-stroke outboard motors** (e.g., 560cc 2-stroke variants may require different parts, but this set is tailored for 4-stroke applications). Ensures proper fitment without modification.

2. **Performance Optimization** Fuel injectors play a critical role in **fuel delivery and engine efficiency**. High-quality injectors like these can improve **throttle response, power output, and fuel economy** by ensuring precise fuel metering.

3. **Durability & Build Quality** The **MDL-560** designation suggests a **mechanically durable** design, likely made from **stainless steel or high-grade materials**, which resists corrosion and wear over time important for marine or high-use applications.

4. **Ease of Installation** Designed for **direct replacement** of OEM injectors, reducing the need for extensive modifications. Comes as a **complete set**, ensuring consistency in performance across all injectors.

5. **Compatibility with Aftermarket Tuning** If you plan to **modify your engine (e.g., turbocharging, forced induction, or ECU tuning)**, these injectors may be **upgraded versions** that handle higher fuel flow rates better than stock units.

6. **Warranty & Support** Reputable brands (assuming this is from a trusted supplier) often provide **warranties or return policies**, offering peace of mind against defects.

7. **Cost-Effective Upgrade** Compared to **full engine rebuilds or high-end performance kits**, this is a **moderate-cost upgrade** that can significantly enhance performance without major overhauls.

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1. **Potential Overkill for Stock Engines** If your engine is **stock and lightly used**, these injectors may be **more advanced than necessary**, leading to **unnecessary cost** without significant performance gains.

2. **Requires Proper Tuning** Upgraded injectors **must be paired with a compatible ECU map** to avoid **lean or rich fuel mixtures**, which can cause **poor performance, overheating, or engine damage**. A **professional tune** may be required.

3. **Installation Complexity** While designed for easy replacement, improper installation (e.g., **sealing issues, wiring errors, or incorrect flow settings**) can lead to **leaks, misfires, or reduced lifespan**.

4. **Compatibility Confusion** Some buyers may mistake this for a **2-stroke injector set** (common in older 560cc outboards). If your engine is **2-stroke**, these **4-stroke injectors will not work** always verify engine type before purchase.

5. **Dependence on Fuel Quality** High-quality injectors **require clean fuel** to function optimally. **Poor fuel (with contaminants) can clog injectors**, reducing their lifespan and performance.

6. **Potential for Counterfeit Parts** If purchasing from an **unverified seller**, there s a risk of receiving **fake or low-quality injectors** that fail prematurely. Stick to **authorized dealers or trusted brands**.

7. **Limited Longevity Without Maintenance** Like any fuel system component, injectors **require periodic cleaning and maintenance** (e.g., **fuel system additives, injector cleaning services**). Neglect can lead to **carbon buildup and reduced efficiency**.

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### **Conclusion**

The **Mitsubishi INP401 MDL-560 (560cc) fuel injector set** is a **solid upgrade** for **4-stroke Mitsubishi engines**, particularly if you re looking to **enhance performance, improve fuel efficiency, or prepare for modifications**. It offers **better durability, precision fuel delivery, and compatibility** with aftermarket tuning compared to OEM injectors.

However, it is **not a universal fix** it requires **proper installation, tuning, and maintenance** to avoid issues. If your engine is **stock and rarely used**, the benefits may not justify the cost. Conversely, for **high-performance, modified, or marine applications**, these injectors are a **worthwhile investment**.

### **Recommendation**

- You have a **4-stroke Mitsubishi 560cc engine** (verify model).

- You plan to **modify the engine (turbo, ECU tune, etc.)**.

- You want **better fuel atomization and engine response**.

- You re purchasing from a **trusted supplier** (avoid counterfeits).

- Your engine is **2-stroke** (wrong part).

- You re not prepared for **ECU tuning or professional installation**.

- You expect **immediate performance gains without maintenance**.

- Your engine is **stock and rarely used** (may not see significant benefits).

- **Check engine compatibility** (confirm 4-stroke 560cc).

- **Get a professional tune** after installation.

- **Use high-quality fuel and additives** to prolong injector life.

- **Consider a reputable brand** (e.g., **Mitsubishi OEM, Walbro, or aftermarket brands with good reviews**).

If used correctly, this injector set can **significantly improve your engine s performance and reliability**. Otherwise, it may end up being an **unnecessary expense**.

Details:

Refurbished original 560cc EVO injectors. Fit for DSM, EVO 3/4 5 6, Honda B and Series. Cleaned and flow matched.

part #: inp401 prices

• $39.95-$144.00

specifications carfuelinjector:

• for makes: Mitsubishi
• mpn: Inp401
• type: Fuel Injector
• oe/oem part number: Mdl-560
• items included: O-ring, Seal
• universal fitment: Yes
• fuel type: Gasoline
• performance part: No

payments carfuelinjector:

• credit card: Mastercard
• other
• wallet: Apple-pay

shipping carfuelinjector:

• type: Calculated
• transit: 4-8 Days
• service: UPS Ground
• carrier: UPS
• class: Standard
• cost: $0.00

returns carfuelinjector:

• paid by: Buyer
• time: 14 Days
• policy: Returns Accepted

offer carfuelinjector:

• options: Ship-to-home
• sold: 0
• started: February 1, 2026
• availability: In Stock
• quantity: 1

seller carfuelinjector:

• # reviews: 850
• rating: 100.0%
• city: Mishawaka, Indiana

general carfuelinjector:

• condition: Remanufactured
• Air Fuel Delivery > Fuel Injection Parts > Fuel Injectors

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