FLOWMASTER L159690 Exhaust Muffler 743593989351

( Brand: Flowmaster ), ( Part Type: Exhaust Muffler ), ( Manufacturer Part Number: L159690 ), ( Fitment Type: Performance/custom ), ( Material: Stainless Steel ), ( Shape: Oval ), ( Outlet Diameter: In ), ( Color: Gray ), ( Body Width: 9.75 ), ( Tip Material: No Tip ), ( Sound Level: Aggressive Sound ), ( UPC: 743593989351 )

Review FLOWMASTER Exhaust Muffler Chevrolet fits C20 1975-80

Introducing the Flowmaster L159690 Exhaust Muffler, a high-performance replacement component designed specifically for the Chevrolet C20 pickup trucks manufactured between 1975 and 1980. This muffler, crafted by the renowned Flowmaster brand, is an excellent upgrade for those seeking enhanced exhaust flow and improved engine performance.

The L159690 muffler is built using 16-gauge aluminized steel, ensuring durability and resistance to corrosion. Its unique design features a 2.5-inch inlet and a 3-inch outlet, allowing for a smooth and unrestricted exhaust flow. This results in improved engine breathing and increased horsepower.

Flowmaster's proprietary muffler technology, known as the "Super 40" series, is incorporated into this component. This design employs a series of chambered internal tubes that help to reduce exhaust noise while maintaining a pleasing and performance-enhancing exhaust tone. This is achieved through the manipulation of exhaust gases inside the muffler, creating a unique and distinctive sound that is often associated with high-performance vehicles.

The L159690 exhaust muffler is also CARB-legal, ensuring compliance with California Air Resources Board regulations. This makes it an ideal choice for those living in California or looking to register their vehicle in the state.

Installation of the Flowmaster L159690 Exhaust Muffler is relatively straightforward and can be completed using common hand tools. The muffler comes with all necessary hardware for installation, including mounting brackets and clamps. Additionally, the muffler's inlet and outlet connections are equipped with flexible, reinforced rubber hoses, providing extra protection against vibration and potential exhaust leaks.

In summary, the Flowmaster L159690 Exhaust Muffler is a top-tier upgrade for the Chevrolet C20 pickup trucks from 1975 to 1980. With its robust construction, improved exhaust flow, unique sound, CARB-legal compliance, and straightforward installation process, this muffler is an essential addition for any enthusiast looking to enhance the performance and appearance of their classic pickup truck.

Flowmaster L159690 muffler is a popular aftermarket exhaust component for Chevrolet C20 pickups manufactured between 1975 and 1980. This muffler is known for its distinctive sound and performance enhancements. Here are some pros and cons of buying this muffler:

1. Enhanced Performance: Flowmaster mufflers are designed to improve the exhaust flow, resulting in increased engine performance and horsepower.

2. Distinctive Sound: The Flowmaster muffler produces a deep, resonant exhaust note that is popular among truck enthusiasts.

3. Durable Construction: The muffler is made of high-quality stainless steel, which ensures durability and resistance to rust and corrosion.

4. Easy Installation: The muffler comes with all necessary hardware for installation, making it a relatively straightforward process for most DIY enthusiasts.

5. Improved Fuel Economy: The improved exhaust flow can lead to better fuel economy, as the engine runs more efficiently.

1. Expensive: Compared to stock mufflers, aftermarket Flowmaster mufflers can be quite expensive.

2. Loud: The muffler's design allows for a significant reduction in sound absorption, resulting in a louder exhaust note. This may not be suitable for those who prefer a quieter ride.

3. Not Street Legal in Some Areas: In some jurisdictions, the increased noise level produced by the Flowmaster muffler may not be street legal, so it's essential to check local regulations before installing it.

4. Potential for Increased Emissions: The improved exhaust flow may result in increased emissions, which could be a concern for those who prioritize environmental friendliness.

The Flowmaster L159690 muffler is an excellent choice for Chevrolet C20 pickup owners who want to enhance their vehicle's performance, produce a distinctive exhaust note, and improve durability. However, it comes with some cons, such as expense, increased noise level, potential street legality issues, and increased emissions. Ultimately, the decision to purchase this muffler depends on individual preferences and priorities.

If you are looking for a high-performance exhaust system with a unique sound, the Flowmaster L159690 muffler is an excellent choice. However, if you prioritize a quieter ride, fuel efficiency, or environmental friendliness, this muffler may not be the best option for you. Consider your priorities and budget before making a decision.

part # l159690 prices

• $170.49-$171.87

specifications mufflermooch:

• for models: C20
• for makes: Chevrolet
• for years: 1975-80
• brand: Flowmaster
• part type: Exhaust Muffler
• manufacturer part number: L159690
• fitment type: Performance/custom
• material: Stainless Steel
• shape: Oval
• outlet diameter: In
• color: Gray
• body width: 9.75
• tip material: No Tip
• sound level: Aggressive Sound
• upc: 743593989351

seller mufflermooch:

• # reviews: 18095
• rating: 98.6%

shipping mufflermooch:

• service: Standard, Expedited
• class: Standard, Expedited
• cost: $0.00
• transit: 3-5 Days
• type: Fixed

offer mufflermooch:

• sold: 0
• quantity: 5
• availability: In Stock
• options: Ship-to-home
• best offers: True
• started: January 11, 2026

returns mufflermooch:

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

payments mufflermooch:

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

general mufflermooch:

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

Flowmaster L159690 Is Similar To:

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• Flowmaster 700042031801 Pair Of Super 10 Series Chambered Muffler Used 3 Inch (40.9% similar) $99.95–$101.95. (October 31st, 2024)