ARROW 71687AO Exhaust Steel Slip Aluminum/stainless

( Brand: Arrow ), ( Manufacturer Part Number: 71687AO ), ( Material: Stainless Steel ), ( Finish: Aluminum ), ( Mounting Style: Slip-on ), ( Type: Exhaust Systems ), ( Placement On Vehicle: Exhaust ), ( Country Of Origin: Made In Italy )

Review ARROW Slip on Exhaust Yamaha Aluminum/stainless Steel fits THUNDER R1 2004–2006

The **Arrow 71687AO Thunder Slip-On Exhaust for Yamaha R1 (2004-2006)** is a meticulously engineered aftermarket exhaust system designed to elevate the performance, aesthetics, and overall driving experience of your high-performance sportbike. Crafted from a premium blend of **aluminum and stainless steel**, this slip-on exhaust system is built to withstand the rigorous demands of aggressive riding while delivering a striking visual upgrade that turns heads on the track and the road alike. The **71687AO Thunder** features a **dual-chamber, dual-pipe design** with a **high-flow, low-restriction setup**, allowing for improved exhaust scavenging and a more aggressive power delivery curve. This configuration not only enhances throttle response but also contributes to a deeper, more resonant exhaust note that resonates with the aggressive nature of the R1 s engine. The **aluminum outer casing** provides a lightweight yet durable frame, reducing unsprung weight and improving handling dynamics, while the **stainless steel inner components** ensure long-term corrosion resistance, even in the harshest riding conditions. The **slip-on installation** is a breeze, requiring minimal modification to your stock exhaust system, making it an ideal choice for riders who want a quick yet substantial upgrade without the complexity of a full exhaust swap. Whether you're chasing lap times on the track or cruising through winding roads, the **Arrow Thunder** delivers a perfect balance of performance, durability, and style, ensuring your Yamaha R1 stands out as a true high-performance machine.

The **Arrow 71687AO Thunder Slip-On Exhaust** for the **Yamaha R1 (2004-2006)** is a popular aftermarket upgrade, but it has both advantages and drawbacks depending on your priorities. Below is a detailed breakdown of its pros and cons, followed by a conclusion and recommendation.

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### **Pros**

1. **Performance Gains**

The Thunder slip-on is designed to improve exhaust flow, which can enhance mid-to-high RPM power delivery. Many riders report a noticeable increase in throttle response and a slight boost in horsepower, particularly in the upper RPM range. The aluminum construction reduces weight compared to stock stainless steel, which can improve acceleration and handling.

2. **Lightweight Design**

The aluminum body is significantly lighter than the stock exhaust, contributing to better weight distribution and agility. This can make the bike feel more nimble, especially in aggressive riding or track use.

3. **Aesthetic Appeal**

The Thunder slip-on features a distinctive aggressive styling with a matte black finish and a bold, angular design. It stands out compared to the stock exhaust, giving the R1 a more custom and sporty look.

4. **Ease of Installation**

As a slip-on, it requires minimal modification just removing the stock exhaust and bolting the new one in place. No welding or major fabrication is needed, making it a straightforward upgrade for DIYers or mechanics.

5. **Compatibility**

It is specifically designed for the 2004-2006 Yamaha R1, ensuring a proper fit without the need for adapters or custom work.

6. **Sound Characteristics**

While not as loud as some full-system exhausts, the Thunder slip-on produces a deeper, more aggressive tone compared to the stock exhaust. It retains some of the sporty character of the stock sound but with added growl.

7. **Durability**

The combination of aluminum and stainless steel construction is robust and resistant to corrosion, though aluminum can be more susceptible to dents or scratches than stainless steel.

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### **Cons**

1. **Limited Performance Gains**

While the Thunder slip-on improves exhaust flow, it is not a full-system exhaust. A full exhaust swap (e.g., with a catalytic converter bypass or larger mufflers) would yield more significant power gains. The slip-on is better suited for riders who want subtle improvements rather than drastic performance upgrades.

2. **Potential for Backfires**

The slip-on s design may increase the likelihood of backfires, especially if the bike is tuned or if the stock air intake system is restrictive. This can be mitigated with proper tuning or an upgraded air filter.

3. **Aluminum Corrosion Concerns**

While the Thunder slip-on is coated, aluminum can still corrode over time, particularly in harsh environments or if the coating is damaged. Stainless steel exhausts are generally more corrosion-resistant in the long term.

4. **Noise Regulations**

Depending on local laws, the Thunder slip-on may produce a sound that exceeds legal limits for street-legal bikes. Some riders report it is louder than stock but may still require a muffler or sound dampening if ridden in areas with strict noise ordinances.

5. **Limited Tuning Flexibility**

The slip-on is not designed for high-flow tuning or aggressive modifications. Pairing it with a full exhaust or a tune (e.g., from a reputable tuner) would be necessary for more substantial power gains.

6. **Price Relative to Alternatives**

While affordable for a slip-on, it may not offer the best value compared to other slip-ons or full exhaust systems from brands like Akrapovi , Motecc, or Speed Pro, which can provide better performance for a similar price.

7. **Potential for Vibration**

The lighter weight of the aluminum exhaust can sometimes lead to increased vibration at certain RPM ranges, though this is subjective and may not be noticeable to all riders.

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### **Conclusion**

The **Arrow 71687AO Thunder Slip-On Exhaust** is a solid choice for riders who want a **subtle performance boost, a stylish upgrade, and ease of installation** without committing to a full exhaust system. It excels in **aesthetics, weight reduction, and straightforward installation**, making it ideal for those who prioritize looks and minor power gains over drastic modifications. However, it is not a replacement for a full exhaust if you seek significant horsepower increases or a more aggressive sound.

If your primary goals are **better handling, a sporty look, and modest performance improvements**, the Thunder slip-on is a worthwhile investment. If you are looking for **maximum power, a deeper sound, or long-term durability**, you may want to consider a full exhaust system or a higher-end slip-on with stainless steel construction.

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### **Recommendation**

- You want a **quick, easy, and affordable upgrade** with noticeable (but not extreme) performance gains.

- You prioritize **aesthetics and weight reduction** over raw power.

- You plan to pair it with other minor mods (e.g., an air filter, clutch, or suspension upgrades) rather than a full exhaust system.

- You are satisfied with the **stock or slightly louder sound** and do not need to comply with strict noise laws.

- You want **more power** and are open to a full exhaust system (e.g., Akrapovi , Motecc, or Speed Pro).

- You prefer **stainless steel construction** for better corrosion resistance.

- You plan to **tune the bike aggressively** and need an exhaust that can handle higher flow rates.

- You live in an area with **strict noise regulations** and need a quieter option.

For most **street-riding enthusiasts** who want a **balance of style and minor performance**, the Arrow Thunder slip-on is a **good mid-range choice**. However, if you are serious about **track use or high-performance tuning**, investing in a full exhaust system would be more beneficial in the long run.

Details:

Open box but new. Fits: YAMAHA R1 2004, 2005, 2006. See pictures for what is included.

part #: 71687ao prices

• $575.00-$877.19

specifications cyclemufflermo:

• for models: R1, Thunder
• for makes: Yamaha
• for years: 2004-2006
• brand: Arrow
• mpn: 71687ao
• material: Stainless Steel
• finish: Aluminum
• mounting style: Slip-on
• type: Exhaust Systems
• placement on vehicle: Exhaust
• country of origin: Made In Italy

payments cyclemufflermo:

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

seller cyclemufflermo:

• rating: 99.8%
• city: Phoenix, Arizona
• # reviews: 15578

offer cyclemufflermo:

• options: Ship-to-home
• quantity: 1
• started: April 24, 2026
• availability: In Stock
• sold: 0

returns cyclemufflermo:

• policy: No Returns

general cyclemufflermo:

• Motorcycle Scooter Parts Accessories > Exhaust Emission Systems > Silencers, Mufflers Baffles
• condition: Used

shipping cyclemufflermo:

• type: Fixed
• cost: $0.00
• service: FedEx Ground / FedEx Home Delivery
• transit: 3-6 Days
• class: Standard
• carrier: FedEx

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