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.
Compatibility
-X350/X356/X358 XJR/SV8
-S-Type R
-Range Rover 4.2 SC
-XF 4.2 SC/SV8
Order Processing and Shipping
All orders are built to order in my free time and hand built by me. Please be patient as I can get busy. Most orders are built and shipped with confirmation within 10-14 business days after ordering.
Thank you for your patience and understanding, and I look forward to building your intake!