Increased horsepower and torque for all 50 states. Bolt on extra horsepower and torque with 50-state smog legal JBA Cat4ward headers. These headers are designed to last with a 3/8" thick laser-cut flanges, smooth mandrel-bent tubing, and JBA's patented Firecone? collectors. Available in either 14-gauge steel or 409 stainless steel, these headers are offered in your choice of chrome plated or high-temperature silver ceramic finishes for most applications. JBA includes high-quality mounting hardware and instructions, and best of all, most applications simply bolt on without any additional exhaust modifications