JBA
JBA 03-06 GM Truck 6.0L LS Cat4Ward Header — 1-5/8in Primary Raw 409SS
JBA 03-06 GM Truck 6.0L LS Cat4Ward Header — 1-5/8in Primary Raw 409SS
JBA 03-06 GM Truck 6.0L LS Cat4Ward Header — 1-5/8in Primary Raw 409SS
JBA 03-06 GM Truck 6.0L LS Cat4Ward Header — 1-5/8in Primary Raw 409SS
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JBA 03-06 GM Truck 6.0L LS Cat4Ward Header — 1-5/8in Primary Raw 409SSJBA 03-06 GM Truck 6.0L LS Cat4Ward Header — 1-5/8in Primary Raw 409SSJBA 03-06 GM Truck 6.0L LS Cat4Ward Header — 1-5/8in Primary Raw 409SSJBA 03-06 GM Truck 6.0L LS Cat4Ward Header — 1-5/8in Primary Raw 409SS
JBA

JBA 03-06 GM Truck 6.0L LS Cat4Ward Header — 1-5/8in Primary Raw 409SS

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SKU: JBA1850S-3

About JBA JBA engineers high-quality automotive parts and accessories trusted ...Read more

Price:
$719.27 $791.20
7190 ENTRIES10X
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Car Wheel Size Chart

Wheel Diameter (inches) Tire Width (mm) Aspect Ratio Rim Width (inches)
14185655.5
15195606.0
16205556.5
17215507.0
18225457.5
19235408.0
20245358.5

Note: Wheel and tire sizes vary by car make and model. Always consult your vehicle’s manufacturer for exact specifications.

How to Read Tire Size

Example: 225/45R17 means:

  • 225 = Tire width in mm
  • 45 = Aspect ratio (height as % of width)
  • R17 = Rim diameter in inches

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About JBA

JBA engineers high-quality automotive parts and accessories trusted by enthusiasts and shops across North America. At GGCRACING we stock the full JBA lineup with fast shipping and expert fitment support — order with confidence.

Watch in action

Boost Performance with JBA Cat4Ward Headers for Your GM Truck

Upgrade your 2003-2006 GM Truck equipped with the 6.0L LS engine (without EGR/A.I.R.) using JBA's performance-driven Cat4Ward Headers. These headers are engineered to replace restrictive stock manifolds, delivering a significant improvement in horsepower, torque, and overall engine responsiveness. Crafted from durable 409SS stainless steel, they are designed to withstand the demands of high-performance driving, towing, and everyday use, ensuring lasting quality and performance.

Performance-Focused Features:

  • Improved Exhaust Flow: Engineered to minimize exhaust restriction, allowing your 6.0L LS engine to perform at its best.
  • Firecone Collector Design: Utilizes JBA's race-proven technology to maximize power and torque gains in the low to mid-RPM range, crucial for real-world driving.
  • Robust Construction: Made from high-grade 409SS stainless steel for excellent resistance to heat and corrosion, promising durability.
  • Direct Fit Installation: Designed for a precise fit on compatible GM trucks, including factory emission connections and all necessary hardware for a hassle-free installation.
  • Performance Exhaust Note: Produces a deeper, more aggressive exhaust sound that complements the power gains.

These JBA Cat4Ward Headers are an excellent choice for various GM trucks and SUVs, including Chevrolet Silverado 2500 HD/3500 and GMC Sierra 2500 HD/3500 models from 2003-2006, as well as Hummer H2. Experience enhanced throttle response and a more engaging driving experience. JBA is committed to delivering top-tier performance parts.

Find the ultimate exhaust upgrade for your GM truck at GGCRACING. Shop JBA headers now!

About JBA

JBA engineers high-quality automotive parts and accessories trusted by enthusiasts and shops across North America. At GGCRACING we stock the full JBA lineup with fast shipping and expert fitment support — order with confidence.

Watch in action

Boost Performance with JBA Cat4Ward Headers for Your GM Truck

Upgrade your 2003-2006 GM Truck equipped with the 6.0L LS engine (without EGR/A.I.R.) using JBA's performance-driven Cat4Ward Headers. These headers are engineered to replace restrictive stock manifolds, delivering a significant improvement in horsepower, torque, and overall engine responsiveness. Crafted from durable 409SS stainless steel, they are designed to withstand the demands of high-performance driving, towing, and everyday use, ensuring lasting quality and performance.

Performance-Focused Features:

  • Improved Exhaust Flow: Engineered to minimize exhaust restriction, allowing your 6.0L LS engine to perform at its best.
  • Firecone Collector Design: Utilizes JBA's race-proven technology to maximize power and torque gains in the low to mid-RPM range, crucial for real-world driving.
  • Robust Construction: Made from high-grade 409SS stainless steel for excellent resistance to heat and corrosion, promising durability.
  • Direct Fit Installation: Designed for a precise fit on compatible GM trucks, including factory emission connections and all necessary hardware for a hassle-free installation.
  • Performance Exhaust Note: Produces a deeper, more aggressive exhaust sound that complements the power gains.

These JBA Cat4Ward Headers are an excellent choice for various GM trucks and SUVs, including Chevrolet Silverado 2500 HD/3500 and GMC Sierra 2500 HD/3500 models from 2003-2006, as well as Hummer H2. Experience enhanced throttle response and a more engaging driving experience. JBA is committed to delivering top-tier performance parts.

Find the ultimate exhaust upgrade for your GM truck at GGCRACING. Shop JBA headers now!

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