BBK Performance Parts - 1986-1993 Ford Mustang - 5.0L Stainless steel shorty headers 1-Also fits early “Fox” vehicles with modifications 2- Jet-Hot® Limited Warranty 3- Production and all GT-40 heads 4- Finally a header that fits the new angled spark plug 5.0L GT-40 “P” cylinder head. Fits 1986-93 Mustangs with stock or aftermarket H-pipe. Also fits 1979-85 Mustangs and other Fox chassis with minor modification