Main Stud Kit to suit Toyota 2JZGE / 2JZGTE (AR203-5405) rb25 head drain This Improved ‘working ratio’ is

This Improved ‘working ratio’ is achieved through an increase to the effective surface area of the diaphragm & revisions to the actual springs fitted resulting in greater leverage of the forces the actuator is working against (boost and backpressure) while still being super-responsive

it's simply way too hard

12-Point Black Oxide to suit Holden / Chev / GM - LS Series Engines (Not LS7) M16 x 2

8mm bolt spacing (Common T3/T4 style fitment) & include a -10 outlet

add around 30% to those figures for Ethanol and 60% for pump gas

Main Stud Kit to suit Toyota 2JZGE / 2JZGTE (AR203-5405) rb25 head drain This Improved ‘working ratio’ isPart number: AR203 5405 ARP Main Stud Kit to suit Toyota 3. 0L 2JZGE 2JZGTE (1993 1998). Alternate part numbers: AR2035405 203 5405 2035405