GRAND ROCK CM-55C Muffler

( Brand: Grand Rock ), ( Mounting Style: Clamp-on ), ( Type: Muffler ), ( Shape: Round Straight ), ( Outlet Diameter: 5 In ), ( Manufacturer Part Number: CM-55C ), ( Features: Single Exit ), ( Universal Fitment: Yes )

Review GRAND ROCK Inch Chrome Muffler

The CM-55C muffler, manufactured by Cone Engineering, is a high-performance aftermarket exhaust component designed to deliver both power gains and an enhanced exhaust note for select motorcycles. This muffler is a direct replacement for the original equipment muffler on various models, providing a significant upgrade in terms of performance and sound.

This muffler features a compact, 5.5-inch diameter design, making it an ideal choice for riders seeking a more streamlined look without compromising on sound or power. Constructed from high-quality stainless steel, it boasts superior durability and resistance to corrosion, ensuring a long-lasting and reliable upgrade.

The CM-55C muffler employs Cone Engineering's proprietary packing material, known as the "racing megaphone," which is a unique design that allows for maximum power output while producing a deep, resonant exhaust note. This innovative design not only enhances the overall riding experience but also adds a distinct and aggressive tone to your motorcycle's exhaust system.

The muffler's compact design allows for a more responsive exhaust flow, which can result in increased power and torque. Its carefully engineered internal dimensions ensure optimal scavenging for better combustion efficiency and improved engine performance.

Installation of the CM-55C muffler is straightforward and can typically be completed in less than an hour with basic hand tools. Its universal fitment makes it a versatile option for a wide range of motorcycle models, allowing riders to upgrade their exhaust system with confidence.

In summary, the CM-55C muffler from Cone Engineering is a high-performance exhaust component that delivers power gains, improved engine responsiveness, and an enhanced exhaust note. Its compact design, durability, and ease of installation make it an excellent choice for riders seeking a performance upgrade for their motorcycle exhaust system.

The CM-55C muffler is a popular aftermarket exhaust component for motorcycles. Here are some pros and cons to help you decide if this muffler is a good investment for your motorcycle.

1. Enhanced Performance: The CM-55C muffler is designed to improve the performance of your motorcycle by increasing the exhaust flow and reducing backpressure. This can result in increased horsepower, torque, and throttle response.

2. Improved Sound: The muffler produces a deeper and more aggressive sound, which many riders find appealing. It can also help reduce engine noise, making your ride more enjoyable for yourself and those around you.

3. Durability: The CM-55C muffler is made from high-quality stainless steel, which makes it resistant to rust and corrosion. This means it can withstand the elements and last for a long time.

4. Easy Installation: The muffler is relatively easy to install, and most riders can do it themselves with basic tools. This can save you time and money compared to having it installed at a shop.

1. Cost: The CM-55C muffler can be quite expensive, especially when compared to stock mufflers. This may be a deterrent for some riders who are on a budget.

2. Loudness: The muffler produces a louder exhaust note than most stock mufflers. This may not be desirable for riders who prefer a quieter ride or who live in areas with noise restrictions.

3. Fitment Issues: While the CM-55C muffler fits a wide range of motorcycles, there are some models that it may not be compatible with. It's important to check the fitment before making a purchase to avoid any potential issues.

The CM-55C muffler is a high-quality aftermarket exhaust component that can improve the performance and sound of your motorcycle. However, it comes with some drawbacks, such as cost and potential fitment issues. Ultimately, whether or not this muffler is a good investment for you depends on your personal preferences and riding style. If you're looking for a deeper exhaust note and increased performance, the CM-55C muffler may be worth the investment. However, if you prefer a quieter ride or are on a tight budget, you may want to consider other options.

If you're considering purchasing the CM-55C muffler, I would recommend doing your research first to ensure that it's compatible with your motorcycle and that the benefits outweigh the drawbacks for your riding style. You may also want to consider other aftermarket exhaust options that offer similar performance improvements but may be more affordable or quieter. Ultimately, the decision is yours, and I hope this information helps you make an informed choice.

part # cm55c prices

• $149.99-$495.95

specifications mufflermooch:

• brand: Grand Rock
• mounting style: Clamp-on
• type: Muffler
• shape: Round Straight
• outlet diameter: 5 In
• manufacturer part number: CM-55C
• features: Single Exit
• universal fitment: Yes

shipping mufflermooch:

• service: UPS Ground
• class: Standard
• carrier: UPS
• transit: 4-10 Days
• cost: $65.81
• type: Calculated

payments mufflermooch:

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

general mufflermooch:

• condition: New
• Car Truck Parts Accessories > Exhaust Emission Systems > Mufflers Resonators

returns mufflermooch:

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

offer mufflermooch:

• quantity: 2
• availability: In Stock
• options: Ship-to-home
• sold: 0
• started: November 16, 2025

seller mufflermooch:

• # reviews: 45
• rating: 100.0%

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