These 1 7/8" performance headers replace your factory exhaust manifolds and connect to your exhaust mid pipe. They are made from 1 7/8" CNC mandrel bent tubing and feature solid 3/8" laser cut exhaust flanges. With larger tubing and smoother bends, you get more exhaust flow, freeing up the extra power held back by restrictive manifolds. BBK testing has shown gains up to 30+ horsepower with supporting mods. These headers are finished in a titanium ceramic coating. This product cannot be sold or shipped to the state of California. Year Make Model 2011-2022 Ford Mustang 5.0L, GT, Boss 302, Bullitt These BBK long tube headers are specifically designed to fit ALL 6 Speed Manuals & Automatic transmissions. 2018-2022 require BBK-1121 O2 Extensions 2015-2017 require BBK-16332 O2 extensions 2011-2014 require BBK-1112 O2 Extensions
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