JBA shorty headers are one of the foremost performance upgrades you can bestow upon your beloved car, truck, or SUV. JBA Headers are significantly less restrictive than stock manifolds and dramatically increase the power and efficiency of your engine. Each header is constructed from durable stainless steel to endure the abuse of racing, towing, and daily driving * built to withstand it all. JBA*s proprietary Firecone collector design uses race proven technology for producing maximum power and torque gains where you drive most. Each system includes factory style emission connections and high-quality hardware for a professional no-leak installation. JBA Cat4Ward? Header 96-00 GM Truck 5.0/5.7L SBC W/O A.I.R. 1 1/2" Primary Raw 409 1832S.
Great for my 99 Tahoe it really made a difference in my throttle response also little better gas mileage. Only thing I notice was lack of quality building it ports were beveled sloppy & welds were sloppy. Also not much of a sound to it but all & all good upgrade stainless steel make it not rust keep engine temp cooler then painted
These are the best headers I've ever installed or worked around. Thick quality flanges. Did not have to fight with original y pipe bolting up, egr pipe bolted right up and nice spacing for the original 90 degree wires. Still recommend the insulator sleeves. Very nice headers.