ARP Head Studs Custom Age 625+ for EJ20/EJ25 WRX/STi (260-4704) 250FREIGHT The STM -8AN Fuel Bulkhead

The STM -8AN Fuel Bulkhead Fitting is designed to attach to your fuel pump hanger by drilling out the old feed line

Evo 7/8/9 with STM Billet Radiator or 4/5/6 Radiator

Once the Girodisc system is in place

Built-in RPM converter (direct frequency or with optional inductive clamp)

On modified cars this let's you get more aggressive with your timing/boost maps and will allow you to make more power

ARP Head Studs Custom Age 625+ for EJ20/EJ25 WRX/STi (260-4704) 250FREIGHT The STM -8AN Fuel BulkheadARP 260 4704 head studs for the EJ20 EJ25 Subaru WRX and STi models. This ARP Custom Age 625+ head stud kit includes a full replacement set of 12 studs, 12 washers and 12 nuts with assembly lube. Vehicle Fitment: Subaru EJ20 EJ25 2002 2014 WRX 2004 2021 STi 2009 2012 Legacy GT Also fits some Forester, Baja and Outback models Includes: (12) Custom Age 625+ Studs (12) Parallel Ground Washers (12) 8740 Chrome Moly Steel 12 Point Nuts (1) Ultra Torque