Aeroflow Large Radiator Cap 42Mm 1 1Bar AF64-5043P 2RZ The Boost Reference Adapter offers

The Boost Reference Adapter offers two pressure ports

Spool Drag Pro I beam custom conrods 156mm c/c with ARP2000 7/16 bolts (ARP L19 Bolts available as an upgrade)

and proven top-end pull

while offering much easier pedal operation

GenV Twin Port (Inc Position Sensor Caps) - 14 psi / 1

Aeroflow Large Radiator Cap 42Mm 1 1Bar AF64-5043P 2RZ The Boost Reference Adapter offersPolished Finish These Aeroflow radiator caps feature a precision machined billet aluminium top from 6061 T6 aluminium. Designed for use on 42mm (large cap) radiators and recovery type expansion tanks. These caps are rated at 16 psi (1. 1 bar)(110 kPa).