Description
If you’re running a 6.0L LS engine in your 03-06 GM truck or Hummer, factory exhaust manifolds are costing you both power and efficiency. JBA’s Cat4ward headers unlock measurable horsepower and torque gains while improving exhaust scavenging—essential upgrades for serious performance builds. Stainless steel construction ensures durability against heat cycling and corrosion, making this a long-term investment in your engine’s breathing capability.
- 1-5/8″ Primary Tubing
- 2-1/2″ Collector Diameter
- Stainless Steel Construction
- Natural Finish
- Cat4ward Design
- GM LS-Series Compatible
- 2003-2006 GM Fullsize Truck/SUV
- Bolt-On Installation
- Complete Header Kit
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