Banshee, Screamer V3 Plenum Only

Our Upper Plenum has shown gains of up to 20whp and 18wtq in the midrange rpm band in dyno testing and 12hp and 10tq at peak rpm with a 3” diameter J-Pipe.
With gains that eclipse the typical gains made with the RR upper plenum in the midrange and at peak rpm, the BPI Upper Plenum is a solid option to the restricted oem style upper plenum regardless if you are running our BPI 3.5” J-Pipe or one of the many 3” J-Pipes on the market.