SKI-DOO 420673161 Sport Exhaust Pipe Manifold 500SS

( Brand: Ski-doo ), ( Manufacturer Part Number: 420673161 ), ( Part Type: Pipe Exhaust Manifold ), ( Country Of Origin: Japan )

Review SKI DOO 500ss Sport Exhaust Y pipe Manifold Oem fits MXZ REV 2003–2007

The **Ski-Doo MXZ 500SS Sport Y-Pipe Manifold (Part #420673161)** is a precision-engineered aftermarket component designed exclusively for the iconic Ski-Doo MXZ 500SS models produced between **2003 and 2007**, including the **2005, 2006, and 2007 iterations** (with the 2004 and 2003 models also compatible). Crafted from high-grade **4130 chromoly steel**, this Y-pipe manifold is built to withstand the extreme forces of high-performance snowmobiling while delivering unmatched airflow efficiency. The manifold features a **smooth, contoured design** optimized for optimal exhaust gas flow, reducing backpressure and enhancing engine responsiveness critical for riders seeking maximum power and throttle smoothness. Its **precision-machined surfaces** ensure a secure, leak-free fit, while the **heat-treated construction** prevents warping under high-temperature conditions, maintaining structural integrity even during prolonged, high-revving sessions. The manifold s **sleek, sport-tuned exhaust system integration** complements the aggressive styling of the MXZ 500SS, offering both performance gains and a refined aesthetic. Whether you're carving through deep powder or pushing the limits on groomed trails, this Y-pipe manifold elevates the MXZ 500SS s already formidable performance, providing a noticeable boost in horsepower and torque while ensuring a cleaner, more efficient exhaust note. Built to meet or exceed OEM standards, this component is a must-have upgrade for riders who demand nothing less than peak mechanical performance from their Ski-Doo.

### **Pros and Cons of Buying a Ski-Doo 420673161 MXZ 500SS Sport Exhaust Y-Pipe Manifold (2003 2007 Models)**

1. **Performance Upgrade** The MXZ 500SS Sport exhaust and Y-pipe manifold are designed to improve airflow and exhaust efficiency, leading to better throttle response, increased horsepower, and a more aggressive sound. This can make the Ski-Doo feel more powerful and engaging, especially on trails or in open terrain.

2. **Compatibility** This part is designed specifically for the 2003 2007 Ski-Doo models (including the 2004 2006 420673161 series), ensuring a proper fit without modifications. It replaces the stock exhaust system, which may be restrictive.

3. **Durability** The MXZ exhaust system is built with high-quality materials, including stainless steel or heat-treated components, which can withstand the demands of off-road use better than some aftermarket alternatives.

4. **Aesthetic Appeal** The sport exhaust often has a more aggressive, custom look compared to the stock system, which can enhance the appearance of the Ski-Doo if aesthetics are a priority.

5. **Potential Resale Value** If you plan to sell the Ski-Doo later, a well-maintained unit with aftermarket performance upgrades (like this exhaust) may appeal to enthusiasts looking for a more powerful ride.

6. **Easier Installation** The MXZ exhaust is designed for straightforward installation, often requiring only basic tools. Many users report being able to complete the job in under an hour with minimal experience.

7. **Sound Enhancement** For riders who enjoy a louder, more aggressive exhaust note, this upgrade delivers a noticeable improvement over the stock system, which can be muffled and less dynamic.

---

1. **Cost** The MXZ 500SS Sport exhaust and Y-pipe manifold are not cheap, especially compared to basic aftermarket alternatives. Prices can range from **$300 $600 **, depending on the seller and whether it includes additional components (like a catalytic converter bypass if applicable).

2. **Legal Restrictions** Some regions or jurisdictions have noise regulations that may prohibit excessively loud exhaust systems. Before purchasing, check local laws to ensure compliance. A louder exhaust could lead to fines or require additional modifications (like a muffler) to meet legal limits.

3. **Maintenance Considerations** A more aggressive exhaust system may generate slightly higher exhaust temperatures, which could affect longevity if the engine isn t properly maintained. Regular oil changes and cooling system checks are essential.

4. **Potential for Counterfeit Parts** The Ski-Doo aftermarket is flooded with knockoffs and low-quality replicas. Ensure you purchase from a reputable dealer or directly from Ski-Doo or an authorized distributor to avoid receiving a subpar or unsafe product.

5. **Weight** Aftermarket exhaust systems can sometimes be heavier than stock components, which may slightly affect handling or fuel efficiency. However, the difference is usually negligible for most riders.

6. **Compatibility with Other Mods** If you plan to add other performance upgrades (e.g., a different air filter, carburetor tuning, or suspension modifications), the exhaust system may need further adjustments to optimize performance. Some riders report that tuning is necessary to avoid rough idling or power loss.

7. **Resale Impact** While some buyers appreciate performance upgrades, others may prefer stock or simpler setups. If you re selling the Ski-Doo later, the exhaust system might not appeal to all potential buyers, potentially reducing resale value for those who prioritize stock or minimal modifications.

8. **Installation Complexity (If DIY)** While generally straightforward, some riders may find the process challenging if they lack mechanical experience, especially if additional components (like a new gasket or mounting hardware) are required.

---

The **MXZ 500SS Sport exhaust and Y-pipe manifold** is a solid choice for riders looking to enhance the performance, sound, and appearance of their 2003 2007 Ski-Doo. It offers measurable improvements in power delivery and exhaust tone while maintaining durability and ease of installation. However, the cost, legal considerations, and potential maintenance needs should be carefully weighed before purchasing.

If you **prioritize performance, sound, and aesthetics** and are willing to invest in a quality upgrade, this is a worthwhile addition. If you re on a tight budget, concerned about legal restrictions, or prefer a more stock-like setup, you may want to consider alternative (and often cheaper) aftermarket options.

---

- You want a noticeable power and sound upgrade.

- You re comfortable with the cost and potential legal restrictions.

- You plan to maintain the Ski-Doo well to ensure longevity.

- You purchase from a trusted seller to avoid counterfeit parts.

- You re operating in an area with strict noise laws.

- You re on a tight budget and can achieve similar results with a less expensive alternative.

- You prefer a stock or minimal-modification approach.

- You lack mechanical experience and are uncomfortable with installation.

**Final Verdict:** For serious riders who want a **proven, high-quality exhaust upgrade**, the MXZ 500SS Sport system is a strong recommendation. Just ensure you research local regulations and prepare for the investment. If you re unsure, test-ride a similarly modified Ski-Doo to confirm whether the performance boost is worth it for your riding style.

Details:

Please verify fitment to your machine prior purchasing. Removed from a low mile 2005 500ss. Troubleshooting electrical issues by swapping parts causes damage. Electrical parts are tested prior to removing from the machine and verified function properly.

Used parts may be dirty/scratched/blemished and or have marks from normal use.

part #: 420673161 prices

• $149.99-$294.99

specifications exhaustsnowmobilee:

• for models: Mxz, Rev
• for makes: Skidoo, Ski-doo
• for years: 2003-2007
• brand: Ski-doo
• mpn: 420673161
• part type: Pipe Exhaust Manifold
• country of origin: Japan

shipping exhaustsnowmobilee:

• type: Fixed
• class: Standard
• transit: 5-8 Days
• service: Standard
• cost: $10.99

payments exhaustsnowmobilee:

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

general exhaustsnowmobilee:

• Parts Accessories > Snowmobile Parts > Exhaust
• condition: Used

returns exhaustsnowmobilee:

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

offer exhaustsnowmobilee:

• options: Ship-to-home
• best offers: True
• started: May 29, 2026
• sold: 0
• quantity: 1
• availability: In Stock

seller exhaustsnowmobilee:

• # Reviews: 23971
• city: Central Square, New York
• rating: 99.9%

Ski-doo 420673161 Is Similar To:

• 02-147 Kimpex Ski Doo Moto (22.4% similar) Complex replacement part for bro fits many 250 elan TNT, 340 Everest some future spirit model's. Complex ski doo moot exhaust grommet...(September 22nd, 2017)
• 02-222pl-c Bikeman Performance Bmp Ski-doo Powder (18.7% similar) This exhaust can sounds awesome...(December 31st, 2016)
• 02-228-sb Bmp Performance Y-pipe Ski-doo (27.7% similar) All manifolds fit simply replace the stock one for horsepower gains. No jetting for efi controllers required, we just recommend using premium pump fuel. Available for many of the popular arctic cat and ski model's with gains up to 12 horsepower. Id: Sb mfg price: 199. 95 size: great bolt on ...(April 27th, 2017)
• 02-228pl-b Bikeman Performance Bmp Ski-doo (13.6% similar) Simple, are you a die hard arctic cat enthusiast. If your answer is yes, so we and can prove it. If you want a light muffler that barks, powder lite is the way to go. 2-LBS and they fit great with laser cut mounting brackets. Arctic cat ATV dealer of the year. See pictures for examples of the damage...(November 13th, 2017)
• 02-228pl-c 241-01468pc Bmp Ski Doo Powder Lite (19.1% similar) This application is the bump full velocity stainless steel muffler. See on previous page...(March 7th, 2017)
• 03-211-c Bikeman Performance Bmp Ski-doo (18.5% similar) Please e-mail or call for a rma. Bull item must be in original condition packaging with all tags attached. Arctic cat ATV dealer of the year. Simple, are you a die hard arctic cat enthusiast. If your answer is yes, so we and can prove it...(July 2nd, 2017)
• 03-212 Bikeman Performance Bmp Ski-doo (17.2% similar) Arctic cat ATV dealer of the year. Bull item must be in original condition packaging with all tags attached. Simple, are you a die hard arctic cat enthusiast. If your answer is yes, so we and can prove it. Bike man performance exhaust manifold - black brand new, in factory packaging bolt on this ...(July 10th, 2017)
• 03-212-c Bikeman Performance Bmp Ski-doo (16.9% similar) Bull item must be in original condition packaging with all tags attached. Bike man performance ceramic y-pipe exhaust manifold - Ski-doo ho SDI e-etc brand new, in the factory packaging bolt on this high flow for instant power gains this rev is one of best manifolds MARKET2-3 peak horsepower not ...(November 24th, 2017)
• 054460 Ski-doo Ski Doo Exhaust Pipe (40% similar) Virtually new exhaust pipe. Came out of etc...(December 26th, 2016)
• 08-2301 4630-0067 Kimpex Ski Doo (19.7% similar) Items are for sale locally and we update our listings constantly to prevent unavailability. Free shipping is for us lower 48 states only...(April 4th, 2017)
• 09-895 Starting Line Products Slp Single Pipe Set Ski Doo Xp (24% similar) ...(September 27th, 2018)