SUZUKI 11255-37E30 Power Valve Exhaust Rh 11255-37E31

( Manufacturer Part Number: 11255-37E30 ), ( Type: Power Valve )

Review SUZUKI Oem Model Power Valve Exhaust Rh Side fits RM250 1999–2000

The **Suzuki 11255-37E30 (and its companion part, 11255-37E31) 1999 2000 RM250 Power Valve Exhaust System** represents a precision-engineered component designed to elevate the performance and character of Suzuki s iconic RM250 motorcycle. This exhaust system is a direct replacement for the stock setup, meticulously crafted to maintain the factory s original styling while delivering a significant boost in power, responsiveness, and exhaust note. The **11255-37E30** refers to the primary exhaust header assembly, featuring a **dual-outlet design** with polished stainless steel construction to ensure durability and resistance to corrosion, even under the demanding conditions of off-road riding. The **11255-37E31** is the corresponding **muffler**, which incorporates a **power valve mechanism** a signature feature of Suzuki s RM250 exhaust systems allowing the rider to dynamically adjust the exhaust flow for optimal performance. When the throttle is opened, the power valve opens, redirecting exhaust gases through a larger passage to enhance mid-range power and torque, while closing at lower RPMs to refine the engine s breathing and improve throttle response. This adaptive system not only enhances acceleration but also contributes to a more engaging and sporty riding experience, particularly in technical terrain where quick, precise power delivery is crucial.

The exhaust system is engineered with **high-quality stainless steel tubing**, ensuring both structural integrity and a sleek, aggressive aesthetic that complements the RM250 s rugged, performance-oriented design. The **welded construction** guarantees a secure fit, minimizing the risk of leaks or detachment under vibration, while the **polished finish** not only enhances visual appeal but also reduces the likelihood of rust formation, a common issue in off-road applications. The **power valve exhaust** is also designed to work seamlessly with the RM250 s **catalytic converter** (where applicable) and other emissions-related components, ensuring compliance with regulations while still delivering the performance gains expected from a high-performance aftermarket upgrade. Whether installed on a stock or modified RM250, this exhaust system transforms the bike s exhaust note into a deep, resonant growl that is both thrilling and distinctive, setting it apart from the stock setup.

For riders seeking to maximize the potential of their 1999 2000 RM250, this exhaust system is an ideal choice, offering a balance of **performance, reliability, and authenticity**. It is compatible with both **carbureted and fuel-injected models** (depending on the year and region), making it a versatile upgrade for a wide range of bikes within this generation. The **easy installation process** requiring minimal modifications to the bike s existing setup allows enthusiasts to quickly enhance their RM250 s power delivery without extensive labor. Whether used for track days, trail riding, or daily cruising, the **Suzuki 11255-37E30/37E31 Power Valve Exhaust System** delivers a noticeable improvement in horsepower, torque, and exhaust tone, making it a must-have component for anyone looking to push the boundaries of their RM250 s capabilities.

### Pros and Cons of buying a Suzuki 11255-37E30 (1999-2000 RM250 Power Valve Exhaust)

1. **Performance Enhancement** The power valve exhaust system (part numbers 11255-37E30 and 11255-37E31) is designed to improve mid-range power and throttle response on the RM250. It allows the engine to breathe better by optimizing exhaust flow, particularly in the 5,000 8,000 RPM range, which can make the bike feel more responsive and engaging.

2. **Stock Replacement** This is a direct replacement for the stock exhaust system on the 1999 2000 RM250, meaning it fits without modifications and retains the original styling. It s a straightforward upgrade that doesn t require major modifications to install.

3. **Improved Sound** While not as aggressive as aftermarket exhausts, it provides a more pronounced, sportier exhaust note compared to the stock system, which can enhance the riding experience.

4. **Durability** Suzuki exhaust systems are generally well-built and reliable, especially when sourced from reputable dealers or aftermarket suppliers. The power valve design is robust and designed for the RM250 s powerband.

5. **Compatibility with Other Mods** If you plan to add other performance upgrades (e.g., carburetor tuning, clutch kit, or suspension adjustments), this exhaust can complement those changes by improving overall engine efficiency.

6. **Easy Installation** The system is designed for relatively easy installation, requiring basic tools and mechanical knowledge. Most riders can complete the job in a few hours with minimal effort.

7. **Mainstream Aftermarket Support** Since the RM250 is a classic dirt bike, there is a dedicated aftermarket community that supports this upgrade. You can find installation guides, reviews, and troubleshooting tips online if needed.

---

1. **Limited Power Gain** While the power valve exhaust improves mid-range power, the gains are modest compared to more aggressive aftermarket exhausts or full engine modifications. Expect noticeable but not dramatic improvements in acceleration.

2. **Cost** Depending on the supplier, this exhaust system can range from $150 to $300 or more, which may be a significant investment for a bike that is already several decades old. If you re on a tight budget, other performance upgrades (e.g., carburetor tuning or clutch upgrades) might offer better bang for your buck.

3. **Maintenance Considerations** The power valve mechanism requires periodic maintenance to ensure it functions correctly. Over time, the valve may wear out or become sticky, requiring cleaning or replacement. Neglecting this could lead to reduced performance or failure.

4. **Weight** Exhaust systems, even aftermarket ones, add weight to the bike. While the difference may not be significant, it could slightly affect handling, especially if you re running other heavy modifications.

5. **Resale Value Impact** If you plan to sell the bike later, installing an aftermarket exhaust (even a stock-replacement one) might slightly reduce its resale value compared to a fully stock RM250. However, this is often negligible unless you re dealing with a highly sought-after, unmodified example.

6. **Potential for Noise Complaints** While not as loud as some aftermarket exhausts, this system will produce a more aggressive sound than stock. If you ride in areas with strict noise ordinances or plan to use the bike in urban settings, you may face scrutiny or restrictions.

7. **Compatibility with Other Mods** If you ve already installed other performance parts (e.g., a different exhaust or a remapped ECU), this upgrade might not integrate as smoothly or could require additional tuning to avoid conflicts.

---

The Suzuki 11255-37E30 (1999 2000 RM250 Power Valve Exhaust) is a worthwhile upgrade for riders looking to enhance mid-range power and throttle response without drastic modifications. It s a practical choice for those who want a noticeable but not extreme performance boost while maintaining the bike s original aesthetic. However, it s not a "game-changer" and may not justify the cost for riders who are primarily concerned with top-end speed or aggressive handling improvements.

If you re already running other performance mods or plan to do so in the future, this exhaust can complement those changes effectively. For riders who prioritize simplicity, reliability, and a modest power increase, this is a solid choice. If you re looking for more aggressive gains or a significant sound change, you may want to explore other aftermarket options.

---

- You want a straightforward, stock-replacement upgrade to improve mid-range power and throttle response.

- You re satisfied with the RM250 s stock sound but want a sportier note.

- You re already running or plan to run other performance mods (e.g., carburetor tuning, clutch upgrades).

- You re comfortable with basic maintenance to keep the power valve functioning properly.

- You re on a tight budget and could allocate funds to more impactful mods (e.g., a remapped ECU, clutch kit, or suspension upgrades).

- You prioritize top-end speed or aggressive handling over mid-range power.

- You plan to ride in areas with strict noise regulations where aftermarket exhausts may be restricted.

- You re unsure about your long-term commitment to the bike and want to preserve its resale value as much as possible.

**Final Verdict:** This is a **good mid-tier upgrade** for the RM250, offering a balance of performance, ease of installation, and practicality. It s ideal for riders who want to enhance their riding experience without overhauling the bike. If you re serious about performance, consider pairing it with other complementary mods for better overall results.

Details:

No damage or excessive wear. 1999 SUZUKI 99-00 RM250 OEM model X Y POWER VALVE EXHAUST RH SIDE 11255-37E31, This right side power valve is in very good condition and shows normal signs of wear. Fits model X Y RM250 1999 -2000. Removed From: 1999 Suzuki RM250, Please review all pictures to assess the condition of item.

part #: 1125537e30 prices

• $179.99-$584.38

specifications valvemotorcycleaz:

• for models: Rm250
• for makes: Suzuki
• for years: 1999-2000
• mpn: 11255-37e30
• type: Power Valve

returns valvemotorcycleaz:

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

general valvemotorcycleaz:

• Engines Engine Parts > Valvetrain Components > Engine Valves
• condition: Used

payments valvemotorcycleaz:

• credit card: Visa
• other
• wallet: Paypal

seller valvemotorcycleaz:

• # reviews: 1717
• city: Boylston, Massachusetts
• rating: 99.9%

shipping valvemotorcycleaz:

• transit: 6-12 Days
• type: Fixed
• cost: $0.00
• class: Expedited
• service: USPS Priority Mail
• carrier: USPS

offer valvemotorcycleaz:

• quantity: 1
• availability: In Stock
• sold: 0
• started: February 13, 2026
• options: Ship-to-home

Suzuki 11255-37E30 Is Similar To:

• 08123-60067 Hub Front Suzuki Oem Bearing Wheel Atv 30x55x13 Lt400 (24.7% similar) Purchase this suzuki b1 30X55X13 Beau bearing, front hub, bearing, bearing, hub, bearing, front hub this suzuki b1 30X55X13 Beau is used on these model's and components 4WD front wheel model j k l 4WD front wheel model m n 4WD front wheel model R4WD rear suspension arm model 4WD front wheel model j ...(January 6th, 2015)
• 09202-04020 Suzuki Main Exhaust Power Valve Long Pin Rm (33.3% similar) Open communication. Needs cleaned. We answer all inquiries. Comes as shown...(January 17th, 2019)
• 0926-0090 Vesrah Exhaust Valve For Suzuki Eiger Kingquad Master Runner Vinson (25.3% similar) ...(September 1st, 2018)
• 09444-16003 Suzuki Rm250-rm125 Exhaust Valve (34.6% similar) Suzuki RM250 RM125 exhaust valve shaft spring nos. Absolutely no disappointments. Part number...(November 29th, 2017)
• 1045145 Moose Racing Exhaust Kit Fits Suzuki (33.1% similar) Moose exhaust valve spring kit fits suzuki RM-Z250 stainless steel conversion includes only whats needed to convert your head the long-life black diamond intake valves extend life of train and components by as much 4x over oem titanium parts valves are designed not offer best span oem, but also flow...(July 8th, 2018)
• 1045146 Moose Racing Exhaust Kit Fits Suzuki (33.1% similar) Moose exhaust valve spring kit fits suzuki RM-Z250 stainless steel conversion includes only whats needed to convert your head the long-life black diamond intake valves extend life of train and components by as much 4x over oem titanium parts valves are designed not offer best span oem, but also flow...(July 8th, 2018)
• 1045147 Moose Racing Exhaust Kit Fits Suzuki (33.1% similar) Moose exhaust valve spring kit fits suzuki RM-Z450 stainless steel conversion includes only whats needed to convert your head the long-life black diamond intake valves extend life of train and components by as much 4x over oem titanium parts valves are designed not offer best span oem, but also flow...(April 16th, 2018)
• 1045148 Moose Racing Exhaust Kit Fits Suzuki (33.1% similar) Moose exhaust valve spring kit fits suzuki RM-Z450 stainless steel conversion includes only whats needed to convert your head the long-life black diamond intake valves extend life of train and components by as much 4x over oem titanium parts valves are designed not offer best span oem, but also flow...(March 11th, 2018)
• 1074806 Moose Racing Pro Valve Kit Titanium Fits Suzuki (31.9% similar) ...(May 9th, 2018)
• 1074808 Moose Racing Pro Valve Kit Titanium Fits Suzuki (31.9% similar) ...(May 9th, 2018)
• 11115-11d70 Suzuki Guide Valve (25.2% similar) We ask that orders be paid within 24 hours after winning offer. All correspondences have to go through messaging. Feel free to any time, through messaging. Orders are processed between 2-3PM PST. Buyers who do not reside in the continental us. USPS and ups are our carriers. We rarely carry a full ...(December 10th, 2018)