WALKER 21399 Muffler

( Brand: Walker ), ( Part Type: Muffler ), ( Manufacturer Warranty: 90 Day ), ( Mfr Code: 308 ), ( Manufacturer Part Number: 21399 )

Review WALKER Muffler

The Walker 21399 Muffler is a high-performance exhaust component designed to deliver improved power and enhanced exhaust flow in your vehicle. This muffler is engineered with a mandrel-bent tubing design, ensuring a smooth and unrestricted exhaust path for maximum performance gains.

Constructed from premium 16-gauge steel, this Walker muffler provides superior strength and durability compared to other mufflers in its class. The thick steel walls help prevent exhaust leaks and ensure a tight seal, while the mandrel bending process preserves the original shape and size of the exhaust pipe, ensuring a perfect fit and optimal exhaust flow.

The Walker 21399 Muffler also features a unique "High-Flow" design that maximizes exhaust gas velocity, reducing backpressure and allowing more air to flow into the engine for increased horsepower and torque. This design also helps to reduce exhaust temperatures, protecting the catalytic converter and other exhaust components from thermal damage.

The muffler's exterior is coated with a high-temperature ceramic coating that not only provides a sleek and attractive appearance but also helps to protect the muffler from the harsh elements and corrosion. This coating also reduces under-hood temperatures, helping to maintain optimal engine performance and reduce engine bay heat.

In summary, the Walker 21399 Muffler is a premium exhaust component that delivers significant power gains, improved exhaust flow, and enhanced durability. Its mandrel-bent tubing design, high-flow construction, and high-temperature ceramic coating make it an excellent choice for anyone looking to upgrade their vehicle's exhaust system for improved performance and a more enjoyable driving experience.

Buying a Walker Muffler, specifically model number 21399, can offer several benefits and drawbacks, depending on your individual needs and circumstances. Here's a breakdown of each:

1. Performance: A Walker muffler can improve the performance of your vehicle by enhancing its exhaust flow and reducing back pressure. This can result in increased horsepower and torque, leading to better acceleration and overall driving experience.

2. Durability: Walker mufflers are known for their high-quality materials and robust construction. The 21399 model, for instance, features a mandrel-bent stainless steel design that is resistant to corrosion and damage from extreme temperatures.

3. Sound: The muffler's design can also affect the sound of your vehicle's exhaust. Walker mufflers are typically known for providing a deep, rich exhaust note without being overly loud or obnoxious.

4. Fitment: Walker offers a wide range of mufflers to fit various makes and models, so you can be confident that the 21399 model will fit your specific vehicle.

1. Cost: A Walker muffler, especially a high-performance one like the 21399 model, can be more expensive than some aftermarket alternatives. However, the increased cost may be justified by the potential performance improvements and durability.

2. Installation: Installing a muffler yourself can be a complex process, especially if you're not experienced with exhaust systems. You may need to purchase additional tools and parts, or even hire a professional to do the job for you, which can add to the overall cost.

3. Noise: While the Walker muffler is designed to provide a pleasing exhaust note, some buyers may find that it's still too loud for their preference. If you're particularly sensitive to noise or live in a quiet neighborhood, this could be a potential drawback.

The Walker 21399 muffler offers several advantages, including improved performance, durability, sound quality, and a precise fit for your vehicle. However, it also comes with some potential drawbacks, such as a higher cost, installation complexity, and the possibility of excessive noise.

Ultimately, whether or not the Walker 21399 muffler is a good investment for you depends on your individual priorities and circumstances. If you value performance, durability, and a pleasing exhaust note, and you're willing to invest in a high-quality exhaust system, then the Walker 21399 muffler could be an excellent choice. However, if cost or installation complexity are major concerns, or if you prefer a quieter exhaust note, you may want to consider alternative options.

If you're considering purchasing the Walker 21399 muffler and you're confident in your installation abilities, it could be a worthwhile investment for performance enthusiasts and those seeking a durable, high-quality exhaust system. However, if you're unsure about the installation process or if the cost is a concern, it may be worth exploring alternative aftermarket mufflers that offer similar performance and durability at a lower price point. Additionally, consider researching professional installation services to ensure a proper and safe installation.

part # 21399 prices

• $130.16-$181.99

specifications mufflermooch:

• brand: Walker
• part type: Muffler
• manufacturer warranty: 90 Day
• mfr code: 308
• manufacturer part number: 21399

payments mufflermooch:

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

seller mufflermooch:

• # reviews: 82736
• rating: 99.8%

offer mufflermooch:

• sold: 0
• started: May 13, 2026
• quantity: 3
• options: Ship-to-home
• availability: In Stock

returns mufflermooch:

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

general mufflermooch:

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

shipping mufflermooch:

• cost: $0.00
• service: UPS Ground
• transit: 2-6 Days
• type: Fixed
• carrier: UPS
• class: Standard

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