1. Manifolds & Headers Offered
  2. sku: 6524189092574791
  3. 1ST RACING LS-04ZXL

1ST-RACING LS-04ZXL Exhaust Headers Silverado/gmc 6.0L

fits model: 1500, 2500, 3500, Silverado, Sierra. make: Chevrolet, Gmc. year: 1999–2006.

Ls-04zxl 1st-racing Exhaust Headers For 1999-06 Chevrolet Silverado/gmc Sierra 1500 2500 3500 6.0l

( Brand: 1st-racing ), ( Mounting Style: Bolt-on ), ( Color: Silver ), ( Items Included: Mounting Hardware ), ( Manufacturer Part Number: LS-04ZXL ), ( Material: Stainless Steel ), ( Item Length: 56cm ), ( Placement On Vehicle: Front, Left, Right ), ( Fuel Type: Gasoline ), ( Type: Exhaust Manifold ), ( Manufacturer Warranty: 1 Year ), ( Oe/oem Part Number: For 1999-2006 Chevrolet Silverado 1500 2500 3500 Trucks ), ( Item Height: 36cm ), ( Features: Polished ), ( Country/region Of Manufacture: China ), ( Universal Fitment: No ), ( Item Width: 16cm )

Review 1ST-RACING Exhaust Headers Chevrolet Silverado/gmc 6.0l fits SILVERADO SIERRA 1500 2500 3500 1999–2006

Introducing the 1st Racing LS-04ZXL Exhaust Headers, a high-performance aftermarket solution for your 1999-2006 Chevrolet Silverado and GMC Sierra 1500, 2500, and 3500 models with a 6.0L engine. These exhaust headers are designed to provide enhanced power and improved exhaust flow, making them a popular choice among truck enthusiasts.

The LS-04ZXL headers are constructed from high-quality stainless steel, ensuring durability and resistance to corrosion. Each header comes with 4-into-1 design, which collects the exhaust gases from four cylinders into a single pipe, reducing backpressure and increasing scavenging effect. This design not only leads to increased horsepower and torque but also results in a more responsive engine.

The 1st Racing headers come with a factory-style flange for a seamless installation process. They are designed to bolt directly onto the factory exhaust manifolds, eliminating the need for extensive modifications. The headers also come with 1 5/8-inch primaries, which are larger than the factory 1 3/4-inch primaries, allowing for improved exhaust flow and better gas velocity.

The LS-04ZXL headers are engineered to meet or exceed OEM specifications for a perfect fit and optimal performance. They undergo rigorous testing to ensure they can withstand the harsh conditions of heavy-duty use. By upgrading your exhaust system with these headers, you can expect improved throttle response, increased fuel efficiency, and a more powerful exhaust note.

If you're looking for a high-performance exhaust header upgrade for your 1999-2006 Chevrolet Silverado or GMC Sierra 1500, 2500, or 3500 with a 6.0L engine, the 1st Racing LS-04ZXL Exhaust Headers are an excellent choice. With their durable construction, improved exhaust flow, and seamless installation process, these headers deliver the power and performance you're looking for.

Exhaust Headers Upgrade for 1999-2006 Chevrolet Silverado/GMC Sierra 1500, 2500, 3500 (6.0L): Pros, Cons, and Conclusion

Introduction:

The LS-04ZXL exhaust headers from Racing Beat are a popular aftermarket upgrade for the 1999-2006 Chevrolet Silverado/GMC Sierra 1500, 2500, and 3500 trucks with a 6.0L engine. This article will outline the main advantages and disadvantages of this exhaust header upgrade to help you make an informed decision.

Pros:

1. Enhanced Performance: The LS-04ZXL headers are designed to provide improved exhaust flow, resulting in increased horsepower and torque. This can lead to better acceleration and overall performance.

2. Durability: Racing Beat is known for producing high-quality aftermarket parts. The LS-04ZXL headers are made from stainless steel and are designed to withstand the rigors of heavy-duty usage.

3. Improved Sound: The LS-04ZXL headers offer a more aggressive exhaust note, which can be appealing to many enthusiasts.

4. Easy Installation: Installing the headers is a relatively straightforward process, and most users report that they were able to complete the installation in a few hours.

Cons:

1. Cost: The LS-04ZXL headers are a premium aftermarket upgrade, and they come with a premium price tag.

2. Requires Custom Exhaust System: The headers require a custom exhaust system to be installed, which can add to the overall cost of the project.

3. Fitment Issues: Some users have reported that the headers may not fit perfectly, requiring modifications to ensure a proper seal.

4. Increased Emissions: The headers may result in increased emissions, which could potentially lead to failed emissions inspections.

Conclusion:

The LS-04ZXL exhaust headers from Racing Beat offer several advantages, including improved performance, durability, and sound. However, they also come with some disadvantages, such as a high cost, the need for a custom exhaust system, potential fitment issues, and increased emissions.

If you are an enthusiast looking for increased performance and a more aggressive exhaust note, the LS-04ZXL headers may be worth the investment. However, if you are concerned about the cost or potential fitment issues, you may want to consider other options. Ultimately, the decision to upgrade to the LS-04ZXL headers is a personal one that depends on your specific needs and preferences.

Recommendation:

For those considering the LS-04ZXL headers, it is recommended to thoroughly research the installation process, review installation videos and tutorials, and consider purchasing a custom exhaust system to ensure a proper fit. Additionally, it may be worth exploring alternative aftermarket header options to compare costs and potential benefits.

part # ls04zxl price

  • $25.29

specifications maniheader:

  • for models: 1500, 2500, 3500, Silverado, Sierra
  • for makes: Chevrolet, Gmc
  • for years: 1999-2006
  • brand: 1st-racing
  • mounting style: Bolt-on
  • color: Silver
  • items included: Mounting Hardware
  • manufacturer part number: LS-04ZXL
  • material: Stainless Steel
  • item length: 56cm
  • placement on vehicle: Front, Left, Right
  • fuel type: Gasoline
  • type: Exhaust Manifold
  • manufacturer warranty: 1 Year
  • oe/oem part number: For 1999-2006 Chevrolet Silverado 1500 2500 3500 Trucks
  • item height: 36cm
  • features: Polished
  • country/region of manufacture: China
  • universal fitment: No
  • item width: 16cm

general maniheader:

  • Car Truck Parts Accessories > Exhaust Emission Systems > Manifolds Headers
  • condition: New

seller maniheader:

  • rating: 98.3%
  • # reviews: 6029

returns maniheader:

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

offer maniheader:

  • sold: 0
  • best offers: True
  • quantity: 300
  • availability: In Stock
  • started: June 26, 2025
  • options: Ship-to-home

payments maniheader:

  • other
  • wallet: Paypal
  • credit card: Discover

shipping maniheader:

  • service: UPS Ground
  • cost: $0.00
  • class: Standard
  • transit: 4-7 Days
  • carrier: UPS
  • type: Fixed
for models: 1500, 2500, 3500, silverado, sierra, for makes: chevrolet, gmc, for years: 1999-2006, mounting style: bolt-on, items included: mounting hardware, item length: 56cm, placement on vehicle: front, left, right, fuel type: gasoline, type: exhaust manifold, manufacturer warranty: 1 year, oe/oem part number: for 1999-2006 chevrolet silverado 1500 2500 3500 trucks, item height: 36cm, features: polished, country/region of manufacture: china, universal fitment: no, item width: 16cm,
category: auto parts > car truck parts accessories > exhaust emission systems > manifolds headers, color: silver, material: stainless steel, sku: 6524189092574791,

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1 offer $25.29 USD
  • Offer #1: $25.29 price + $13.20 delivery = $38.49* total.+$13.20 shipping