300/Magnum/Charger - JBA Performance Shorty Headers for 5.7 HEMI In the world of muscle cars, 4 doors is usually a deal killer. Don't tell that to the guys at Dodge and Chrysler. They've taken the powerful new HEMI and dropped it in their new LX platform chassis complete with 4 doors and a roomy interior. The result is a fresh new muscle car look for the street with good ol' fashion American V8 power under the hood. But just like the early days of hot rodding - there is more power to be had with the right combination. JBA has designed the ultimate solution with performance smog legal headers and exhaust systems designed for maximum power. How does +24 hp and +32 lb-ft of torque sound? JBA's engineers tested and tuned these systems for the perfect balance of power and sound. There is even a 3"system developed specifically for the SRT8 models. JBA Cat4ward® Headers :: Available Now! JBA has been building and testing headers for the 5.7L HEMI since it was introduced in 2003. With this experience our engineers were familiar with the design and flow characteristic of the heads and knew what the engine would respond best to. The engineering team at JBA addressed the critical short comings of the 5.7L HEMI exhaust manifolds with a fresh design that started with high flowing 1-3/4" mandrel bent stainless steel tubing. By giving each cylinder a smooth unrestricted path, back pressure is reduced and flow goes way up. The giant 3" collector was engineered using JBA's patented Firecone® - a unique directional device similar to what you find on a long tube race header - which improves flow by providing efficient scavenging of exhaust gasses. Other standard features like thick 3/8" CNC laser-cut flanges, O.E. style JBA sealing dome connection to the exhaust and high quality hardware make them a highly effective upgrade for the HEMI. Bolt-on a set and feel the JBA difference. Charger / Magnum / 300C 5.7L HEMI 1-3/4" Headers ::Header Features:: • 3/8" thick laser-cut single piece flanges • 1-3/4" stainless steel primaries • Patented JBA Firecone® merge collector • JBA sealing dome connection with exhaust • Premium quality hardware and gaskets • Direct bolt-on installation • Will not void factory warranty • Optional ceramic coating (thermal barrier) • 50 state smog legal* *For most applications ::Header Benefits:: • Increase hp & torque throughout RPM range • Improved throttle response • Reduced back pressure • Reduced under hood temperature • Increased passing power • Increased low-end torque • Makes engine more sensitive to other modifications (intake, chip, supercharger, etc.) • Improved engine compartment appearance :: JBA Cat4ward® Headers :: Available Now! Application Tube Size Stainless Steel Silver Ceramic Titanium Ceramic 05-06 Magnum/Charger/300C 5.7L HEMI NEW 1-3/4" 1964S 1964SJS 1964SJT