“JBA leads the industry in 50 state emissions legal exhaust products with our Cat 4Ward Headers and we are pleased to announce that we are the only aftermarket header manufacturer with CARB approval for this application,” the company said in a statement announcing the approval. “From the factory, the Ford F-150 for this application comes saddled with cast manifolds which allowed us to develop a header that improves tone and flow and boasts a noticeable gain in mid-range torque.”
