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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.
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.
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!
| Years | Make | Model | Trim |
|---|---|---|---|
| 2003-2006 | Cadillac | Escalade | Base |
| 2003-2006 | Chevrolet | Silverado 1500 | SS |
| 2004-2005 | Chevrolet | Silverado 1500 | LS |
| 2004-2006 | Chevrolet | Silverado 1500 | LT |
| 2005 | Chevrolet | Silverado 1500 | Z71 Off-Road |
| 2003 | Chevrolet | Silverado 1500 HD | LS |
| 2003 | Chevrolet | Silverado 1500 HD | LT |
| 2005 | Chevrolet | Silverado 1500 HD | Base |
| 2005 | Chevrolet | Silverado 1500 HD | LS |
| 2005-2006 | Chevrolet | Silverado 1500 HD | LT |
| 2003-2004 | Chevrolet | Silverado 2500 | LT |
| 2003-2004 | Chevrolet | Silverado 2500 | Base |
| 2003-2004 | Chevrolet | Silverado 2500 | LS |
| 2004 | Chevrolet | Silverado 2500 | WT |
| 2003-2005 | Chevrolet | Silverado 2500 HD | Base |
| 2003-2006 | Chevrolet | Silverado 2500 HD | LS |
| 2003-2006 | Chevrolet | Silverado 2500 HD | LT |
| 2003-2006 | Chevrolet | Silverado 2500 HD | WT |
| 2003-2005 | Chevrolet | Silverado 3500 | Base |
| 2003-2006 | Chevrolet | Silverado 3500 | LS |
| 2003-2006 | Chevrolet | Silverado 3500 | LT |
| 2004 | Chevrolet | Silverado 3500 | WT |
| 2006 | Chevrolet | Silverado 3500 | WT |
| 2006 | Chevrolet | Suburban 1500 | LTZ |
| 2003-2006 | Chevrolet | Suburban 2500 | LS |
| 2003-2006 | Chevrolet | Suburban 2500 | LT |
| 2003-2006 | GMC | Sierra 1500 | Denali |
| 2004 | GMC | Sierra 1500 | Base |
| 2004 | GMC | Sierra 1500 | WT |
| 2004-2006 | GMC | Sierra 1500 | SLE |
| 2004-2006 | GMC | Sierra 1500 | SLT |
| 2003 | GMC | Sierra 1500 HD | SLE |
| 2003 | GMC | Sierra 1500 HD | SLT |
| 2005-2006 | GMC | Sierra 1500 HD | SLE |
| 2005-2006 | GMC | Sierra 1500 HD | SLT |
| 2003-2004 | GMC | Sierra 2500 | Base |
| 2003-2004 | GMC | Sierra 2500 | SLE |
| 2003-2004 | GMC | Sierra 2500 | SLT |
| 2003-2004 | GMC | Sierra 2500 | WT |
| 2003-2005 | GMC | Sierra 2500 HD | Base |
| 2003-2006 | GMC | Sierra 2500 HD | SLE |
| 2003-2006 | GMC | Sierra 2500 HD | SLT |
| 2003-2006 | GMC | Sierra 2500 HD | WT |
| 2006 | GMC | Sierra 2500 HD | SL |
| 2003-2005 | GMC | Sierra 3500 | Base |
| 2003-2006 | GMC | Sierra 3500 | SLE |
| 2003-2006 | GMC | Sierra 3500 | SLT |
| 2004-2006 | GMC | Sierra 3500 | WT |
| 2006 | GMC | Sierra 3500 | SL |
| 2003-2006 | GMC | Yukon | Denali |
| 2003-2006 | GMC | Yukon XL 1500 | Denali |
| 2003-2006 | GMC | Yukon XL 2500 | SLE |
| 2003-2006 | GMC | Yukon XL 2500 | SLT |
| 2003-2006 | Hummer | H2 | Base |
Other popular JBA products customers consider together:
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.
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.
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!
| Years | Make | Model | Trim |
|---|---|---|---|
| 2003-2006 | Cadillac | Escalade | Base |
| 2003-2006 | Chevrolet | Silverado 1500 | SS |
| 2004-2005 | Chevrolet | Silverado 1500 | LS |
| 2004-2006 | Chevrolet | Silverado 1500 | LT |
| 2005 | Chevrolet | Silverado 1500 | Z71 Off-Road |
| 2003 | Chevrolet | Silverado 1500 HD | LS |
| 2003 | Chevrolet | Silverado 1500 HD | LT |
| 2005 | Chevrolet | Silverado 1500 HD | Base |
| 2005 | Chevrolet | Silverado 1500 HD | LS |
| 2005-2006 | Chevrolet | Silverado 1500 HD | LT |
| 2003-2004 | Chevrolet | Silverado 2500 | LT |
| 2003-2004 | Chevrolet | Silverado 2500 | Base |
| 2003-2004 | Chevrolet | Silverado 2500 | LS |
| 2004 | Chevrolet | Silverado 2500 | WT |
| 2003-2005 | Chevrolet | Silverado 2500 HD | Base |
| 2003-2006 | Chevrolet | Silverado 2500 HD | LS |
| 2003-2006 | Chevrolet | Silverado 2500 HD | LT |
| 2003-2006 | Chevrolet | Silverado 2500 HD | WT |
| 2003-2005 | Chevrolet | Silverado 3500 | Base |
| 2003-2006 | Chevrolet | Silverado 3500 | LS |
| 2003-2006 | Chevrolet | Silverado 3500 | LT |
| 2004 | Chevrolet | Silverado 3500 | WT |
| 2006 | Chevrolet | Silverado 3500 | WT |
| 2006 | Chevrolet | Suburban 1500 | LTZ |
| 2003-2006 | Chevrolet | Suburban 2500 | LS |
| 2003-2006 | Chevrolet | Suburban 2500 | LT |
| 2003-2006 | GMC | Sierra 1500 | Denali |
| 2004 | GMC | Sierra 1500 | Base |
| 2004 | GMC | Sierra 1500 | WT |
| 2004-2006 | GMC | Sierra 1500 | SLE |
| 2004-2006 | GMC | Sierra 1500 | SLT |
| 2003 | GMC | Sierra 1500 HD | SLE |
| 2003 | GMC | Sierra 1500 HD | SLT |
| 2005-2006 | GMC | Sierra 1500 HD | SLE |
| 2005-2006 | GMC | Sierra 1500 HD | SLT |
| 2003-2004 | GMC | Sierra 2500 | Base |
| 2003-2004 | GMC | Sierra 2500 | SLE |
| 2003-2004 | GMC | Sierra 2500 | SLT |
| 2003-2004 | GMC | Sierra 2500 | WT |
| 2003-2005 | GMC | Sierra 2500 HD | Base |
| 2003-2006 | GMC | Sierra 2500 HD | SLE |
| 2003-2006 | GMC | Sierra 2500 HD | SLT |
| 2003-2006 | GMC | Sierra 2500 HD | WT |
| 2006 | GMC | Sierra 2500 HD | SL |
| 2003-2005 | GMC | Sierra 3500 | Base |
| 2003-2006 | GMC | Sierra 3500 | SLE |
| 2003-2006 | GMC | Sierra 3500 | SLT |
| 2004-2006 | GMC | Sierra 3500 | WT |
| 2006 | GMC | Sierra 3500 | SL |
| 2003-2006 | GMC | Yukon | Denali |
| 2003-2006 | GMC | Yukon XL 1500 | Denali |
| 2003-2006 | GMC | Yukon XL 2500 | SLE |
| 2003-2006 | GMC | Yukon XL 2500 | SLT |
| 2003-2006 | Hummer | H2 | Base |
Other popular JBA products customers consider together: