STANDARD MOTOR PRODUCTS 31JRMNW41 Throttle Body Smp

( Brand: Standard Motor Products ), ( Manufacturer Part Number: 31JRMNW41 ), ( Type: Throttle Body ), ( Fits 1: 2007-2008 Mitsubishi Raider ), ( Fit Note: Bse Premium Quality Remanufactured ), ( Manufacturer Warranty: 12 Month Warranty ), ( Attention: Please Read All Notes To Confirm Fitment ), ( Cs-sku: 400 )

Review STANDARD MOTOR PRODUCTS Throttle Body Smp Mitsubishi fits RAIDER 2007–2008

The **Standard Motor 31JRMNW41 Throttle Body (SMP)** is a high-performance, direct-fit replacement designed specifically for the **2007 and 2008 Mitsubishi Raider** models equipped with the **4G94 3.0L V6 engine**. Engineered to meet or exceed OEM specifications, this throttle body is crafted from durable materials to ensure long-lasting performance and reliability, making it an ideal upgrade for enthusiasts seeking improved throttle response, smoother operation, and enhanced engine efficiency. The **SMP (Single Motor Position) version** features a single throttle blade actuator, which is ideal for applications where a simpler, more straightforward control mechanism is preferred, such as in naturally aspirated or mild turbocharged setups. Unlike aftermarket alternatives that may compromise on fitment or quality, this throttle body is precision-machined to match the original Mitsubishi design, ensuring a seamless integration with the intake manifold, wiring harness, and engine management system. Its robust construction includes a **stainless steel or high-grade plastic throttle blade**, resistant to warping, corrosion, and wear, while the internal components are designed to minimize friction and maximize responsiveness. Whether you're tuning for better acceleration, improving drivability, or preparing the Raider for a more aggressive engine build, this throttle body delivers a reliable and performance-focused solution. Backed by Standard Motor s reputation for quality and compatibility, it provides the confidence of a direct replacement that won t require extensive modifications, allowing for a straightforward installation and immediate benefits in throttle smoothness and engine performance.

**Pros and Cons of Buying a Standard Motor 31JRMNW41 Throttle Body (SMP) for a Mitsubishi Raider (2007-2008)**

### **Pros**

1. **Improved Performance** The SMP (Smart Motorized Throttle) throttle body is designed to provide smoother and more responsive throttle control compared to the stock mechanical throttle body. This can lead to better acceleration, especially in stop-and-go traffic or when shifting gears.

2. **Better Fuel Efficiency** The SMP throttle body uses electronic control to optimize airflow, which can help reduce unnecessary fuel consumption by preventing "throttle lag" and allowing the engine to run more efficiently under varying loads.

3. **Smoother Idling and Acceleration** The electronic throttle control (ETC) system in the SMP helps eliminate jerky throttle responses, making the driving experience more refined, particularly in city driving or when merging.

4. **Compatibility with Modern Tuning** Since the SMP is electronically controlled, it works seamlessly with aftermarket ECU tuners (such as Haltech, Link, or AEM) that require a throttle position sensor (TPS) input. This allows for fine-tuning of throttle response, power delivery, and launch control.

5. **Durability and Reliability** Standard Motor is a reputable manufacturer known for producing high-quality aftermarket throttle bodies. The SMP is built to last longer than the stock throttle body, reducing the risk of wear or failure over time.

6. **Easier Installation** The SMP throttle body is designed to be a direct replacement for the stock unit, meaning no major modifications to the intake or wiring are required. It comes with all necessary mounting hardware and wiring connectors.

7. **Reduced Throttle Lag** Unlike the stock mechanical throttle body, which can suffer from "throttle droop" (where the throttle plate doesn t fully close), the SMP ensures a clean, consistent signal to the ECU, improving overall drivability.

8. **Potential for Future Upgrades** If you plan to add other performance parts (such as a turbocharger, supercharger, or high-flow intake), the SMP throttle body is a solid foundation that can be upgraded alongside other components.

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### **Cons**

1. **Cost** The SMP throttle body is more expensive than the stock unit, typically ranging between **$200 $400**, depending on the retailer and any additional accessories (such as a throttle position sensor or wiring harness). This is a significant upfront investment compared to simply replacing a failed stock throttle body.

2. **Potential Learning Curve with Tuning** While the SMP works well with stock or lightly tuned engines, improper tuning (e.g., aggressive power increases without corresponding fuel/air adjustments) can lead to **rough idling, stalling, or even engine damage**. This requires either a basic understanding of ECU tuning or the help of a professional tuner.

3. **Compatibility Issues with Stock ECUs** Some stock Mitsubishi ECUs (especially in older models) may not fully recognize the SMP throttle body out of the box, requiring a **custom tune** or a **throttle position sensor (TPS) calibration** to ensure proper operation. This may involve additional costs for a tuner.

4. **Risk of Aftermarket Parts Incompatibility** If you re using non-standard aftermarket parts (such as a non-OEM throttle body adapter or a third-party ECU), there s a chance of **electrical or mechanical conflicts**, leading to poor performance or failure.

5. **Wiring and Sensor Considerations** The SMP throttle body requires proper wiring to the ECU and may need a **throttle position sensor (TPS) or throttle actuator motor (TAM) replacement** if the stock sensors are damaged. This adds to the complexity of installation.

6. **Not a Power-Upgrade** Unlike a high-flow intake or turbocharger, the SMP throttle body does **not** significantly increase horsepower or torque. Its primary benefits are **drivability and efficiency improvements**, not raw performance gains.

7. **Potential for Throttle Body Failure Over Time** While the SMP is more durable than the stock unit, electronic throttle bodies can still fail due to **carbon buildup, electrical issues, or sensor drift**, requiring eventual replacement or cleaning.

8. **Installation Complexity for Beginners** While the physical installation is straightforward, **wiring and ECU calibration** can be challenging for those without mechanical or electrical experience. Incorrect wiring or tuning can lead to **no-start conditions or drivability issues**.

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### **Conclusion**

The **Standard Motor 31JRMNW41 SMP throttle body** is a **highly beneficial upgrade** for a **2007-2008 Mitsubishi Raider** if your primary goals are **improved throttle response, smoother acceleration, better fuel efficiency, and compatibility with aftermarket tuning**. It is particularly useful for those who want to **eliminate mechanical throttle lag, reduce jerky shifts, and prepare the vehicle for future performance modifications**.

However, the **cost, potential tuning requirements, and learning curve** make it a **better fit for intermediate to advanced DIYers or those working with a tuner**. If you re on a tight budget or only need a **direct replacement for a failed stock throttle body**, a **high-quality OEM or aftermarket mechanical throttle body** (such as a **Mitsubishi-compatible unit**) may be a more cost-effective solution.

For most **performance-oriented Raider owners**, the **SMP throttle body is a worthwhile investment** especially if paired with a **proper ECU tune** as it enhances drivability without requiring major engine modifications.

### **Recommendation**

- **If you want smoother throttle response, better fuel economy, and tuning compatibility** **Go for the SMP throttle body** and get it professionally tuned or calibrated.

- **If you only need a direct replacement for a failed stock unit and don t plan on tuning** Consider a **high-quality OEM or aftermarket mechanical throttle body** (e.g., **Mitsubishi part # 31JRMNW41 or a compatible aftermarket unit**).

- **If you re planning future power upgrades (turbo, supercharger, etc.)** The **SMP throttle body is a smart choice** as it will work seamlessly with aftermarket ECUs.

- **If you re not mechanically inclined** Have a **professional installer and tuner** handle the job to avoid potential issues.

**Final Verdict:** The **Standard Motor SMP throttle body is a strong upgrade** for the **2007-2008 Mitsubishi Raider**, especially for those who prioritize **drivability and tuning flexibility**. Just ensure proper installation and tuning to maximize its benefits.

Details:

12 Month Warranty. Throttle Body SMP 31JRMNW41 for Mitsubishi Raider 2007 2008: Brand: Standard Motor Products condition: Remanufactured, Notes BSE Premium Quality - Detailed Applications Vehicle Sub model Engine, 2007 - 2008 RaiderLS3.7L V6, RaiderDuroCross3.7L V6.

part #: 31jrmnw41 price

• $134.12

specifications throobo:

• for models: Raider
• for makes: Mitsubishi
• for years: 2007-2008
• brand: Standard Motor Products
• mpn: 31jrmnw41
• type: Throttle Body
• fits 1: 2007-2008 Mitsubishi Raider
• fit note: Bse Premium Quality Remanufactured
• manufacturer warranty: 12 Month Warranty
• attention: Please Read All Notes To Confirm Fitment
• cs-sku: 400

shipping throobo:

• cost: $0.00
• service: Standard
• type: Fixed
• transit: 3-7 Days
• class: Standard

returns throobo:

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

seller throobo:

• # reviews: 57816
• city: San Bernardino, California
• rating: 97.1%

offer throobo:

• sold: 0
• options: Ship-to-home
• started: May 7, 2026
• quantity: 1
• availability: In Stock

general throobo:

• Car Truck Parts Accessories > Air Fuel Delivery > Throttle Bodies
• condition: Remanufactured

payments throobo:

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• wallet: Paypal
• credit card: Mastercard

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