These are direct from Bosch Racing !!! 127 at 4 bar!!!! high impedance 48mm o ring to o ring. FIC has all the adapters to fit just about every application from LS1 to LS9 Chevy and even adapters for the Subaru WRX. These have the EV1 plug. Use with a stock computer!!!! NO NEED FOR A DRIVER BOX!!! TUNE DATA IS INCLUDED! JUST REQUEST IT. ALL SETS ARE DYNAMICALLY FLOW MATCHED!
* Please Put in the notes what vehicle it is for!!! If you have a different intake manifold setup that comes on the vehicle etc please be specific!!