FLOWMASTER L158513 Exhaust Kit 743593977587

( Brand: Flowmaster ), ( Manufacturer Part Number: L158513 ), ( Fitment Type: Direct Fit ), ( System Type: Cat-back ), ( Material: Aluminized Steel ), ( Single Dual: Single ), ( Heat Shield: No ), ( Sound Level: Mild Sound ), ( UPC: 743593977587 )

Review FLOWMASTER Exhaust System Kit Gmc fits K1500 1988–1992

Introducing the Flowmaster L158513 Exhaust Kit, specifically designed for GMC K1500 pickup trucks manufactured between 1988 and 1992. This exhaust system upgrade is more than just an aftermarket accessory; it's an investment in enhanced engine performance, improved exhaust flow, and an unmistakable custom sound.

The Flowmaster L158513 Exhaust Kit comes with a 16-inch long, 2.5-inch diameter stainless steel muffler. This muffler features Flowmaster's patented "Series 40" design, which is renowned for its deep, resonating sound. Its internal structure is made up of a series of chambered tubes, allowing for maximum gas flow while effectively reducing exhaust noise levels.

This exhaust kit also includes a pair of stainless steel, 2.5-inch diameter inlets and outlets, along with the required mounting hardware. The inlets are designed to connect seamlessly to the factory exhaust system, ensuring a perfect fit and secure installation. The outlets feature a 3-inch diameter to accommodate the larger diameter piping between the muffler and the rear of the vehicle.

The piping in this exhaust system is constructed from 304 stainless steel, which not only provides superior strength but also offers excellent resistance to corrosion and rust. Additionally, the piping is mandrel-bent to ensure smooth, unrestricted exhaust flow for optimal engine performance.

By upgrading to the Flowmaster L158513 Exhaust Kit, you'll experience increased horsepower and torque, as well as improved exhaust gas flow. Furthermore, the custom exhaust note produced by this system is sure to turn heads and make your GMC K1500 stand out from the crowd.

In summary, the Flowmaster L158513 Exhaust Kit for GMC K1500 trucks (1988-1992) is more than just an exhaust system upgrade. It's an investment in improved engine performance, enhanced exhaust flow, and a distinctive custom sound. With its high-quality stainless steel construction and patented "Series 40" muffler design, this exhaust system is a must-have for any enthusiast looking to take their pickup truck to the next level.

The Flowmaster L158513 exhaust kit is a popular aftermarket exhaust system for the GMC K1500 trucks manufactured between 1988 and 1992. This exhaust system is known for its distinctive sound and performance enhancements. In this analysis, we will discuss the pros and cons of investing in this exhaust kit.

1. Increased Power and Performance: The Flowmaster exhaust system is designed to enhance the engine's power output and improve its overall performance. The exhaust kit's mandrel-bent tubing ensures minimal restriction, allowing for better exhaust flow and increased horsepower.

2. Improved Engine Response: The exhaust system's design results in a quicker engine response, making the vehicle feel more responsive and dynamic.

3. Enhanced Sound: The most notable feature of the Flowmaster exhaust system is its unique sound. The system's mufflers are designed to provide a deep, rumbling exhaust note that many enthusiasts find appealing.

4. Durability: The exhaust kit is made from high-quality materials, ensuring long-lasting durability. The system's mandrel-bent tubing and stainless steel construction make it resistant to rust and corrosion.

5. Easy Installation: The exhaust kit comes with all necessary hardware and instructions, making the installation process straightforward and manageable for most DIY enthusiasts.

1. Cost: The Flowmaster exhaust kit is a more expensive aftermarket option compared to stock exhaust systems. The increased cost may not be justifiable for some buyers.

2. Loudness: The exhaust system's distinctive sound may be too loud for some users, especially those who prefer a quieter ride.

3. Fitment Issues: In some cases, the exhaust kit may require modifications to fit properly, which could add to the installation time and cost.

4. Backpressure: The exhaust system's design may increase backpressure in the engine, which could negatively impact fuel economy and engine longevity.

5. Maintenance: The exhaust system may require more frequent maintenance due to its exposed nature, particularly in harsh environments.

The Flowmaster L158513 exhaust kit for the GMC K1500 trucks offers significant performance enhancements, a unique sound, and improved durability. However, the system's high cost, potential loudness, fitment issues, potential for increased backpressure, and increased maintenance requirements are important considerations. Ultimately, the decision to invest in this exhaust kit depends on individual preferences, priorities, and budget.

If you are an enthusiast looking for improved performance, a distinctive sound, and increased durability, the Flowmaster L158513 exhaust kit is a recommended option for your GMC K1500. However, if you prioritize a quieter ride, fuel economy, or a lower cost, it may be worth considering alternative exhaust systems or modifying the existing exhaust to meet your needs.

part # l158513 price

• $779.95

specifications frazzlekits:

• for models: K1500
• for makes: Gmc
• for years: 1988-1992
• brand: Flowmaster
• manufacturer part number: L158513
• fitment type: Direct Fit
• system type: Cat-back
• material: Aluminized Steel
• single dual: Single
• heat shield: No
• sound level: Mild Sound
• upc: 743593977587

payments frazzlekits:

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

general frazzlekits:

• condition: New
• Car Truck Parts Accessories > Exhaust Emission Systems > Exhaust System Kits

returns frazzlekits:

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

offer frazzlekits:

• sold: 0
• availability: In Stock
• options: Ship-to-home
• started: August 25, 2025
• best offers: True
• quantity: 2

seller frazzlekits:

• rating: 98.4%
• # reviews: 17830

shipping frazzlekits:

• class: Standard, Expedited
• transit: 3-8 Days
• type: Fixed
• cost: $0.00
• service: Standard, Expedited

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