FLOWMASTER L159764 Exhaust Muffler 743593990098

( Brand: Flowmaster ), ( Part Type: Exhaust Muffler ), ( Manufacturer Part Number: L159764 ), ( Fitment Type: Performance/custom ), ( Material: Stainless Steel ), ( Shape: Oval ), ( Tip Diameter: In ), ( Color: Gray ), ( Inlet Connection Type: Pipe Connection ), ( Mount Type: Uses New Hangers ), ( Body Width: 9.75 ), ( Tip Material: No Tip ), ( Sound Level: Aggressive Sound ), ( UPC: 743593990098 )

Review FLOWMASTER Exhaust Muffler Forgmc fits C1500 1999

Introducing the Flowmaster L159764 Exhaust Muffler, a high-performance upgrade for your GMC C1500 pickup truck. This muffler, part of Flowmaster's renowned 40 Series product line, is designed to deliver an exceptional balance of power and sound.

The L159764 muffler features a tube-in-Tube design, which is a Flowmaster exclusive. This design allows for maximum scavenging of exhaust gases, ensuring efficient removal of spent fuel from the engine. The result is a noticeable improvement in power and acceleration.

Moreover, the 40 Series muffler is engineered with Flowmaster's patented "Sonic Flow Technology." This cutting-edge design utilizes a series of internal baffles, which are strategically placed to maximize exhaust flow and minimize backpressure. This results in a deep, powerful exhaust note that is both pleasing to the ear and an indication of optimal engine performance.

The L159764 muffler is constructed from premium-grade 16-gauge aluminized steel. This robust material provides excellent protection against rust and corrosion, ensuring long-lasting durability. The muffler's exterior is coated with a high-temperature ceramic coating, which not only adds an attractive finish but also helps to insulate the exhaust system and reduce under-hood heat.

Installation of the L159764 muffler is made easy with its bolt-on design. It is a direct replacement for the factory exhaust muffler on your GMC C1500, requiring no modifications or fabrication work. The muffler comes complete with all necessary hardware, making installation a straightforward process that can be accomplished in a weekend.

Upgrading your GMC C1500 with the Flowmaster L159764 Exhaust Muffler not only enhances its performance but also provides it with a more aggressive and distinctive exhaust note. This exhaust system upgrade is perfect for those who want to add a touch of personality to their pickup truck while also improving its power and efficiency.

Pros and Cons of Buying a Flowmaster L159764 Exhaust Muffler for a GMC C1500

The Flowmaster L159764 exhaust muffler is a popular aftermarket option for those looking to enhance the performance and sound of their GMC C1500 pickup truck. Here are some pros and cons to consider before making a purchase.

1. Enhanced Performance: The Flowmaster muffler is designed to improve the flow of exhaust gases, leading to better engine performance. It allows more exhaust to exit the system, reducing backpressure and increasing horsepower and torque.

2. Improved Sound: The muffler's unique design provides a deep, rumbling exhaust note that is popular among truck enthusiasts. It can make your truck sound more aggressive and powerful.

3. Durable Construction: The Flowmaster L159764 is built with high-quality stainless steel, ensuring long-lasting performance and resistance to rust and corrosion.

4. Easy Installation: The muffler comes with all necessary hardware for installation, and most users report that the process is straightforward and can be completed in a few hours.

1. Cost: The Flowmaster L159764 is priced higher than OEM mufflers. While the performance and sound enhancements may be worth the investment for some, others may find the cost prohibitive.

2. Loudness: The muffler's design prioritizes sound over quiet operation. If you value a quieter ride, this may not be the best option for you.

3. Fitment: While the Flowmaster L159764 is designed to fit most GMC C1500 models, there have been reports of fitment issues. Be sure to verify that it will fit your specific truck before purchasing.

The Flowmaster L159764 exhaust muffler offers several benefits for those looking to enhance the performance and sound of their GMC C1500. Its durable construction, easy installation, and aggressive exhaust note make it a popular choice among truck enthusiasts. However, its higher cost and potential fitment issues are important considerations. Ultimately, the decision to purchase this muffler depends on your personal preferences and priorities.

If you are looking to improve the performance and sound of your GMC C1500 and are willing to invest in a high-quality aftermarket muffler, the Flowmaster L159764 is a solid choice. However, if cost or quietness are concerns, you may want to explore other options or wait for potential sales or discounts. Always be sure to verify fitment before purchasing.

part # l159764 price

• $170.49

specifications mufflermooch:

• for models: C1500
• for makes: Gmc
• for years: 1999
• brand: Flowmaster
• part type: Exhaust Muffler
• manufacturer part number: L159764
• fitment type: Performance/custom
• material: Stainless Steel
• shape: Oval
• tip diameter: In
• color: Gray
• inlet connection type: Pipe Connection
• mount type: Uses New Hangers
• body width: 9.75
• tip material: No Tip
• sound level: Aggressive Sound
• upc: 743593990098

shipping mufflermooch:

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

payments mufflermooch:

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

returns mufflermooch:

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

offer mufflermooch:

• quantity: 5
• availability: In Stock
• options: Ship-to-home
• best offers: True
• sold: 0
• started: March 22, 2026

seller mufflermooch:

• # reviews: 18381
• rating: 98.7%

general mufflermooch:

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

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