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. Brand JBA Headers Manufacturer's Part Number 1675S Part Type Headers Product Line JBA Headers Cat4ward Headers Part Number JBA-1675S Header Style Shorty Header Material Stainless steel Header Finish Natural Primary Tube Diameter (in) 1 5/8 in. Tuned No Flange Style Standard Flange Thickness (in) 3/8 in. Bolts/Studs Included Yes Gaskets Included No Reducers Included No Y-Pipe Included No Motor Mounts Included No Transmission Mount Included No Quantity Sold as a pair.