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At the heart of your Silverado is Chevy's dependable and powerful Vortec V8. These small blocks are capable of getting most jobs done but when the load gets heavy the factory cast manifolds get in the way of performance and efficiency. JBA's Cat4ward® Headers designed for the Vortec V8 open up the breathing on your truck with high-flowing mandrel-bent 1-5/8" primary tube that merge in to JBA's patented Firecone® merged collector. By reducing back pressure and turbulence in the exhaust, the JBA headers free up torque, horsepower and efficiency lost in the factory set-up. Get as much as 14+ hp and 21 lb-ft of torque at the tires. These headers also feature ultra thick 3/8" laser-cut flanges and are available in a variety of finishes to fit your specific needs. Each kit includes high quality hardware and thorough instructions for a professional bolt-on installation.
| ::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
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| ::Header Features:: |
- 3/8 " thick laser-cut single piece flanges
- 1-5/8" Mandrel-bent stainless steel tubes
- 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*
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Specifics:
- Chevy Silverado / GMC Sierra
- Stainless Steel
- 99-01, 4.8/5.3L, With EGR, No Air Inj., 1-5/8"
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