100% built in USA by an OEM Mopar / Chrysler supplier! 21¼" OAL. Will fit all 1966-'70 B-body Mopars, such as Plymouth Road Runner, Satellite, GTX, Coronet, Charger, etc., Correct "large" firewall bushing, premium all-steel construction -- no plastic crap! If your Mopar is an E-body, or a '71-up B-body model with the snap-in plastic firewall fitting, this will NOT fit, but check my eBay store, I have you covered. I also offer extra-long cables for high rise manifold use. Add low-cost S&H per calculator (several options, see tab above). Partial list of models and years it fits: Road Runner, GTX, Plymouth Dodge Coronet Belvedere Satellite SuperBird Daytona Road Runner 440-6 Charger Super Bee R/T 1966 1967 1968 1969 1970. See main text for specifics! Text, graphics / layout, and photograp