FLOWMASTER L159665 Exhaust Muffler 743593989108 73-86

( Brand: Flowmaster ), ( Part Type: Exhaust Muffler ), ( Manufacturer Part Number: L159665 ), ( Fitment Type: Performance/custom ), ( Material: Stainless Steel ), ( Shape: Oval ), ( Outlet Diameter: In ), ( Color: Gray ), ( Inlet Connection Type: Pipe Connection ), ( Mount Type: Uses New Hangers ), ( Body Width: 9.75 ), ( Tip Material: No Tip ), ( Sound Level: Moderate Sound ), ( UPC: 743593989108 )

Review FLOWMASTER Exhaust Muffler Chevrolet 73-86 fits SUBURBAN K10

Introducing the Flowmaster L159665 Exhaust Muffler, a high-performance aftermarket exhaust component designed specifically for Chevrolet K10 Suburban models from 1973 to 1986. This muffler, part of Flowmaster's renowned 40-series lineup, delivers an exceptional balance of power gains, improved exhaust flow, and a bold, distinctive sound that is sure to enhance your driving experience.

The L159665 muffler is meticulously crafted from premium 16-gauge aluminized steel, ensuring both durability and rust resistance. Its innovative design consists of a series of parallel, tapered internal passages that maximize exhaust scavenging and minimize backpressure, resulting in a more efficient exhaust system.

This Flowmaster muffler is also notable for its distinct sound character. Its unique internal design, featuring Flowmaster's patented "supernova" core, provides a balanced exhaust note that is both aggressive and refined. The sound is amplified by the muffler's wrap-around, dual-chambered design, which utilizes internal baffles to create a rich, deep tone that is instantly recognizable.

Installing this Flowmaster muffler in your Chevrolet K10 Suburban is a straightforward process. It is a direct-fit replacement for the factory muffler, requiring no modifications or cutting. The muffler's inlet and outlet diameters are compatible with the stock exhaust system, ensuring a seamless integration.

In summary, the Flowmaster L159665 Exhaust Muffler is an excellent investment for Chevrolet K10 Suburban owners seeking to boost power, enhance exhaust flow, and add a distinctive, bold exhaust note to their vehicle. Its durability, ease of installation, and unparalleled performance make it a must-have upgrade for any enthusiast.

Pros and Cons of Buying a Flowmaster L159665 Exhaust Muffler for a Chevrolet K10 Suburban (1973-1986)

The Flowmaster L159665 exhaust muffler is a popular aftermarket exhaust component for vehicles like the Chevrolet K10 Suburban (1973-1986). This muffler is known for its unique sound and performance enhancements. In this article, we will discuss the pros and cons of investing in a Flowmaster L159665 exhaust muffler for your Chevrolet K10 Suburban.

1. Enhanced Performance: The Flowmaster L159665 exhaust muffler is designed to improve the overall performance of your vehicle by reducing backpressure, allowing for better exhaust flow, and increasing horsepower and torque.

2. Unique Sound: This muffler is famous for its distinctive, deep, and powerful sound. It is a popular choice among enthusiasts who want to give their vehicle a more aggressive and menacing tone.

3. Durability: Flowmaster exhaust components are made from high-quality materials, ensuring that the muffler can withstand the rigors of daily driving and off-road conditions.

4. Improved Gas Mileage: Some users have reported improved gas mileage after installing a Flowmaster exhaust system due to the increased efficiency of the exhaust system.

5. Easy Installation: The Flowmaster L159665 exhaust muffler is relatively easy to install, making it a popular choice for DIY enthusiasts.

1. Cost: The Flowmaster L159665 exhaust muffler is more expensive than the stock exhaust component. However, many users argue that the performance and sound improvements are worth the investment.

2. Loudness: The muffler's unique sound may be too loud for some users, especially those who prefer a quieter ride. It may also not be suitable for vehicles used primarily for towing or carrying heavy loads.

3. Fitment Issues: Some users have reported fitment issues, especially with older vehicles. It is essential to ensure that the muffler is compatible with your specific model and year of the Chevrolet K10 Suburban.

4. Maintenance: A Flowmaster exhaust system may require more frequent maintenance than a stock exhaust system due to the increased flow of exhaust gases.

The Flowmaster L159665 exhaust muffler for the Chevrolet K10 Suburban (1973-1986) offers several advantages, including improved performance, unique sound, durability, potential fuel efficiency gains, and ease of installation. However, it also comes with some disadvantages, such as cost, loudness, potential fitment issues, and increased maintenance requirements. Ultimately, the decision to purchase a Flowmaster exhaust muffler depends on your personal preferences and priorities. If you are an enthusiast who values performance and sound over quietness and comfort, this muffler may be an excellent investment for you.

If you are considering purchasing a Flowmaster L159665 exhaust muffler for your Chevrolet K10 Suburban (1973-1986), we recommend doing thorough research to ensure compatibility with your specific model and year. Additionally, consider the advantages and disadvantages outlined above to determine if this exhaust component aligns with your preferences and priorities. Weigh the potential performance gains against the cost and potential downsides to make an informed decision.

part # l159665 prices

• $223.25-$225.06

specifications mufflermooch:

• for models: K10, Suburban
• for makes: Chevrolet
• brand: Flowmaster
• part type: Exhaust Muffler
• manufacturer part number: L159665
• fitment type: Performance/custom
• material: Stainless Steel
• shape: Oval
• outlet diameter: In
• color: Gray
• inlet connection type: Pipe Connection
• mount type: Uses New Hangers
• body width: 9.75
• tip material: No Tip
• sound level: Moderate Sound
• upc: 743593989108

returns mufflermooch:

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

payments mufflermooch:

• wallet: Google-pay
• credit card: Diners-club
• other

shipping mufflermooch:

• class: Standard, Expedited
• transit: 2-5 Days
• service: Standard, Expedited
• type: Fixed
• cost: $0.00

general mufflermooch:

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

offer mufflermooch:

• availability: In Stock
• started: August 25, 2025
• options: Ship-to-home
• quantity: 4
• sold: 0
• best offers: True

seller mufflermooch:

• rating: 98.4%
• # reviews: 17830

Flowmaster L159665 Is Similar To:

• Flowmaster 842541 Exhaust Muffler-40 Series Tm Delta Flow Muffler (50% similar) $168.95. (September 8th, 2024)
• Flowmaster 43043 40 Series Chambered Muffler (39.6% similar) $99.95–$104.99. (September 15th, 2024)
• Flowmaster 943051 50 Series Delta Flow Chambered Muffler Part # (43.1% similar) $173.95–$344.95. (September 16th, 2024)
• Flowmaster 42542 Exhaust Muffler (56.6% similar) $99.95–$200.90. (September 24th, 2024)
• Flowmaster 12414310 Exhaust Muffler Used (56.1% similar) $245.95. (September 25th, 2024)
• Flowmaster 842512 Exhaust Muffler-super 10 Series Delta Flow Fits 2015 Ford Mustang (49.3% similar) $99.95–$101.95. (September 29th, 2024)
• Chevrolet 333.gm1z07 07 Chevy Corvette C6 Flowmaster Exhaust Muffler Assembly Set Pair (43.1% similar) $69.00–$350.00. (October 8th, 2024)
• Flowmaster 942448 Exhaust Muffler-super 44 Tm Delta Flow Muffler (53.4% similar) $137.95. (October 14th, 2024)
• Flowmaster 853046 3.00 Offset In/center Out Super 40 Series Chambered Muffler (33.3% similar) $170.95. (October 17th, 2024)
• Flowmaster 9430452 Super 44 Series Performance Exhaust Muffler 3 Inch / 2.5 (43.7% similar) $137.95–$404.95. (October 20th, 2024)
• Flowmaster 700042031801 Pair Of Super 10 Series Chambered Muffler Used 3 Inch (37.5% similar) $99.95–$101.95. (October 31st, 2024)