i got it from this guy i know, TC, he owns next generation motorsports. www.nxtgenmotorsports.com the inside of plenum is ported and polished and the throttle body is ported and polished and the exterior is show polished hopefully in a month my charger will match. my friend said he gained 17 horse and 21 ft lb and his truck is only on 12 pounds. think about all u guys that are on 16+ pounds. the throttle body is only one less horse than the accufab which for the price of the accufab isnt owrth it. any other questions u can pm me or respond here.