NGK R0045Q-11 Spark Plug Sparkplug Racing No. 5957
( Brand: Ngk ), ( Manufacturer Part Number: R0045Q-11 ), ( Type: Spark Plug ), ( Machine Type: Street Motorcycle ), ( California Prop 65 Warning: Nickel. )
Review NGK Spark Plug Sparkplug Type Racing R0045q11 No.
The **NGK R0045Q-11 spark plug** is a high-performance racing spark plug engineered to deliver exceptional reliability, precision ignition, and superior combustion efficiency in demanding engine applications. Designed specifically for high-revving, turbocharged, or forced-induction engines, this plug features a **11mm threaded shell** and a **0.045-inch (1.14mm) electrode gap**, making it an ideal choice for performance-oriented vehicles, drag racing, time attack, or motorsport applications where consistent and aggressive firing is critical. The **Q-series** designation signifies NGK s commitment to durability and performance, with a robust construction that resists fouling, erosion, and electrode wear even under extreme conditions. This plug incorporates a **copper core electrode**, which provides excellent heat dissipation and rapid heat transfer, ensuring optimal spark consistency and preventing pre-ignition or misfires in high-stress environments. The **resistor-type design** (5957 code) helps minimize radio interference, making it a practical choice for both on-track and street applications where electronic noise could otherwise disrupt communication systems.
The **R0045Q-11** is built with a **14mm hex head** for secure installation and removal, paired with a **12mm washer**, ensuring a tight, vibration-resistant fit in tight engine bays or high-stress mounting points. Its **iridium alloy tip** delivers a fine, precise spark with minimal wear, extending plug life and maintaining consistent performance over thousands of miles or laps. This plug is particularly well-suited for engines running **high-octane fuels, nitrous oxide (N2O), or aggressive tuning setups**, where traditional copper or platinum plugs might struggle to maintain reliability. Whether installed in a **high-revving V8, a turbocharged inline-six, or a supercharged engine**, the R0045Q-11 ensures a strong, reliable spark that maximizes power output while minimizing the risk of detonation or engine damage. For racers and enthusiasts seeking a balance of performance, longevity, and adaptability, this NGK racing spark plug stands as a dependable choice that can handle the most demanding applications with ease.
### **Pros and Cons of buying a NGK R0045Q-11 (Racing) Spark Plug**
#### **Pros:**1. **High Performance** Designed for racing and high-performance engines, this plug delivers superior ignition efficiency, leading to better combustion and power output.
2. **Durability** Made with a copper core and platinum electrodes, it resists wear and corrosion, extending its lifespan compared to standard plugs.
3. **Consistent Ignition** The fine-wire design ensures reliable spark even under extreme conditions, reducing misfires.
4. **Heat Range Suitability** The **5957** heat range is suitable for high-compression engines, preventing pre-ignition (knocking) while maintaining optimal performance.
5. **Compatibility with Aftermarket Mods** Works well with turbocharged, supercharged, or forced-induction setups, making it ideal for modified engines.
6. **Longer Service Intervals** Due to its robust construction, it can last longer than stock plugs in high-performance applications, reducing maintenance frequency.
7. **NGK s Reputation** NGK is a trusted brand known for quality and reliability in both OEM and aftermarket applications.
#### **Cons:**1. **Higher Cost** Racing-grade plugs are significantly more expensive than standard plugs, which may not be cost-effective for daily drivers.
2. **Potential for Overkill** If the engine is not heavily modified or tuned, the performance gains may be minimal, making the investment unnecessary.
3. **Installation Challenges** Some users report difficulty installing these plugs due to their fine-wire design, requiring careful handling to avoid bending the electrode.
4. **Not Ideal for Cold Starts** The fine platinum tip can be less forgiving in very cold conditions compared to iridium or copper plugs, though this is less common in modern engines.
5. **Limited Availability** Racing-specific plugs may not be as widely stocked as standard plugs, requiring special ordering in some cases.
6. **Risk of Over-Torquing** Due to their precision, these plugs can be damaged if installed with excessive torque, requiring careful use of a torque wrench.
7. **Not Suitable for All Engines** Some stock engines (especially older or low-compression ones) may not benefit significantly from this plug, potentially leading to wasted money.
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### **Conclusion**
The **NGK R0045Q-11 (5957)** is an excellent choice for **high-performance, modified, or forced-induction engines** where maximum power and reliability are critical. Its superior ignition characteristics, durability, and compatibility with aggressive tuning make it a strong option for racers and enthusiasts. However, for **stock or lightly modified engines**, the cost may not justify the performance gains, and a standard high-quality plug (e.g., NGK Iridium or Champion IR) could be a more practical alternative.
If you are running a **turbocharged, supercharged, or high-RPM engine**, this plug will likely provide noticeable improvements in power, efficiency, and longevity. For **daily drivers or stock engines**, it may be overkill, and a more budget-friendly option would be preferable.
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### **Recommendation**
- **Buy if:** You have a **modified, turbocharged, or high-performance engine** and need reliable, high-output spark plugs for racing or aggressive driving.
- **Skip if:** Your engine is **stock or lightly modified**, as the cost may not be justified by performance gains.
- **Alternative Considerations:**- For **stock engines**, opt for a **platinum or iridium plug** (e.g., NGK Iridium IX or Champion IR).
- For **extreme high-performance applications**, consider **double platinum or copper core plugs** (e.g., NGK FR or Denso NTK).
- Always ensure the **heat range (5957)** matches your engine s specifications to avoid pre-ignition or fouling.
If you confirm that your engine is **high-performance and tuned**, the **NGK R0045Q-11 is a solid, high-end choice** that will enhance reliability and power. Otherwise, a more balanced plug may be the better investment.
Details:
part #: r0045q11 prices
- $50.00-$100.33
specifications cyclesparkplugs:
- brand: Ngk
- mpn: R0045q-11
- type: Spark Plug
- machine type: Street Motorcycle
- california prop 65 warning: Nickel.
seller cyclesparkplugs:
- rating: 0.0%
- city: Gardena, California
- # reviews: 294
shipping cyclesparkplugs:
- cost: $8.10
- service: USPS Ground Advantage
- carrier: USPS
- type: Calculated
- class: Standard
- transit: 6-12 Days
payments cyclesparkplugs:
- wallet: Apple-pay
- other
- credit card: Mastercard
returns cyclesparkplugs:
- policy: No Returns
offer cyclesparkplugs:
- started: February 11, 2026
- sold: 0
- options: Ship-to-home
- quantity: 8
- availability: In Stock
general cyclesparkplugs:
- Motorcycle Scooter Parts Accessories > Electrical Ignition Components > Spark Plugs
- condition: New
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