AMR RACING CDI-S2 Box Elc High Performance Cdi

( Brand: Amr Racing ), ( Manufacturer Part Number: CDI-S2 ), ( Part Type: Box ), ( Warranty: 2 Year ), ( Country Of Origin: United States )

Review AMR RACING Elc warrior Cdi Box High Performance Yamaha Stage fits WARRIOR REV 350 1997–2001

The **AMR Racing ELC-Warrior CDI-S2** is a high-performance, factory-replacement ignition control module designed specifically for Yamaha Warrior 350 models produced between 1997 and 2001. Engineered to deliver superior power, reliability, and longevity, this advanced CDI box replaces the stock ignition system, offering a dramatic improvement in throttle response, fuel efficiency, and overall engine performance. Built with high-quality components, the CDI-S2 features a robust, sealed design that protects against moisture, dust, and electrical interference, ensuring consistent operation even in demanding conditions. Unlike generic aftermarket replacements, this module is meticulously calibrated to match the exact firing patterns and timing requirements of the Warrior 350 s 350cc engine, providing a seamless upgrade without the need for additional modifications. The ELC-Warrior CDI-S2 incorporates a precision-tuned ignition coil and advanced capacitor technology, which enhances spark intensity and combustion efficiency, resulting in a noticeable increase in horsepower and torque. Whether you're looking to boost acceleration, improve low-end torque, or simply restore lost performance due to wear on the original CDI, this module delivers a clean, reliable, and high-performance solution. Ideal for both street and light off-road use, the CDI-S2 is a trusted choice among Yamaha enthusiasts seeking a cost-effective yet high-end upgrade that maximizes engine potential without compromising durability. With its plug-and-play installation and compatibility with stock wiring harnesses, this ignition control module is the perfect solution for riders who demand more from their Warrior 350.

### **Pros and Cons of the AMR Racing ELC-Warrior CDI-S2 CDI Box for a Yamaha Warrior 350 (1997-2001)**

1. **Enhanced Performance** The CDI-S2 is designed to improve throttle response, power delivery, and overall engine efficiency. It can provide a noticeable boost in acceleration and top-end power, especially in stock or lightly modified engines.

2. **Compatibility** Specifically engineered for the Yamaha Warrior 350 (1997-2001) series, ensuring proper integration with the stock wiring and ignition system without major modifications.

3. **Durability and Reliability** AMR Racing products are known for high-quality construction, often featuring sealed components to prevent moisture and corrosion, which is beneficial for marine applications.

4. **Easier Installation** Designed to replace the stock CDI box with minimal wiring changes, making it a straightforward upgrade for DIY enthusiasts or mechanics.

5. **Potential for Future Modifications** Some CDI boxes allow for additional tuning or aftermarket upgrades, such as performance cams or fuel system enhancements, if desired.

6. **Cost-Effective Upgrade** Compared to full engine rebuilds or major modifications, the CDI-S2 offers a relatively low-cost way to improve performance.

7. **Improved Ignition Timing** Optimized timing can lead to smoother operation, reduced misfires, and better fuel efficiency in some cases.

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1. **Limited Power Gains** While the CDI-S2 provides noticeable improvements, it may not deliver dramatic horsepower increases unless paired with other modifications (e.g., carburetor upgrades, exhaust, or fuel system tweaks).

2. **Requires Proper Installation** Incorrect wiring or improper grounding can lead to electrical issues, such as no-start conditions or erratic performance. Professional installation is recommended if unsure.

3. **Not a Full Engine Rebuild** The CDI box alone won t compensate for worn internals (e.g., pistons, rings, or bearings). If the engine is in poor condition, other repairs may still be necessary.

4. **Potential for Over-Tuning** If the engine is already modified or runs on high-octane fuel, an aggressive CDI setting could cause detonation or damage. Stock or mild tuning is safer for most applications.

5. **Warranty Concerns** If the Yamaha is still under manufacturer warranty, installing an aftermarket CDI box may void it, especially if the engine is damaged due to improper tuning.

6. **Dependence on Other Systems** Performance gains are maximized when paired with a clean air intake, proper fuel delivery, and a well-maintained engine. Without these, results may be underwhelming.

7. **Learning Curve for Tuning** Some CDI boxes allow for adjustments, but improper settings can lead to poor performance or engine stress. Research and testing are required to dial in the best settings.

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The **AMR Racing ELC-Warrior CDI-S2** is a solid choice for Yamaha Warrior 350 owners (1997-2001) looking to enhance throttle response, ignition reliability, and overall engine performance. It is a relatively simple and cost-effective upgrade that can make a noticeable difference, particularly for stock or lightly modified engines. However, it is not a standalone solution for heavily worn or neglected engines, and proper installation and tuning are critical to avoid issues.

For best results, pair the CDI-S2 with basic maintenance (clean air filter, proper fuel, and good spark plugs) and consider complementary upgrades like a performance carburetor or exhaust system if further power gains are desired.

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- **If your engine is in good condition and you want a straightforward performance boost**, the CDI-S2 is a worthwhile investment.

- **If your engine is old or neglected**, address major wear (e.g., rings, valves, or fuel system) before installing the CDI box.

- **Have a mechanic or experienced tuner install and set up the CDI** to ensure proper wiring and initial tuning.

- **Monitor performance after installation** and adjust settings gradually to avoid engine stress.

- **Consider additional mods** (e.g., carburetor, exhaust, or fuel system) if you want more significant power gains.

Overall, the CDI-S2 is a **reliable and effective upgrade** for those seeking improved ignition and throttle response without a full engine overhaul.

Details:

Stage 3 works great on stock motors, even better with after market exhaust/air/etc. Maximizes your motors potential. Stage 3: Basically the 3 has a more aggressive timing curve vs the stage 2, and slightly higher Rev limit. Replaces OEM Part #.

Easy Plug Play application, NON-Programmable, installs in minutes. 3GD-85540-00. This Part Fits the Following Machines. No connectors or splicing needed, - Will not Damage motor, designed to work well within motors tolerance, More Aggressive Timing Curve than stock.

WARRIOR 350 97-01. AMR PERFORMANCE CDI REV BOX: - Increased Rev Limit!, Horsepower!, Hotter Spark!, Improved Throttle Response, Easier Starting, Works with or without Digital Dash features.

part #: cdis2 prices

• $139.95-$189.95

specifications electricacompone:

• for models: Rev, 350, Warrior
• for makes: Yamaha
• for years: 1997-2001
• brand: Amr Racing
• mpn: Cdi-s2
• part type: Box
• warranty: 2 Year
• country of origin: United States

general electricacompone:

• ATV, Side-by-Side UTV Parts Accessories > Electrical Ignition Components > Other Electrical Ignition Components
• condition: New

seller electricacompone:

• # Reviews: 69413
• rating: 98.6%
• city: Las Vegas, Nevada

offer electricacompone:

• availability: In Stock
• started: March 6, 2026
• options: Ship-to-home
• best offers: True
• sold: 0

returns electricacompone:

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

shipping electricacompone:

• service: Standard, Expedited
• type: Fixed
• transit: 7-13 Days
• class: Standard, Expedited
• cost: $0.00

payments electricacompone:

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

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