Bolt on extra horsepower and torque with 50-state smog legal JBA Cat4ward headers. These headers are designed to last, with 3/8 in. 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. Unless otherwise noted, these headers are designed to fit the vehicle as it came from the manufacturer. This includes components like cylinder heads, chassis, steering, motor mounts, body mounts and bushings, etc. If your vehicle is using aftermarket components, parts from other applications, or custom altered parts, then it is the installer's responsibility to verify fitment