New OEM RA Shortblock W- Forged CP EJ257 Pistons 99.5 w- Race Bearings Ej Timing Parts *Requires “A” & “B” looms

*Requires “A” & “B” looms or “A” & “B” connector kits

CAN Frequency 1Mb/s

If using the CAN Lambda with a G4+/G4X PlugIn ECU use a Link CANPCB cable to access the CAN port on the PlugIn PCB and a Link CANF field insertable CAN plug

Outfront recommends this stud kit from 400-600HP range

5L AT X 2005

New OEM RA Shortblock W- Forged CP EJ257 Pistons 99.5 w- Race Bearings Ej Timing Parts *Requires “A” & “B” loomsOutfront Motorsports Stage 1 RA shortblock is for that added Protection against ring land failure on a lightly modified car. These custom pistons are made specifically for use with B25, V25, W25, and N25 cylinder heads found on the 04+ STI and other EJ257 applications. This configuration includes: Custom Outfront Motorsports spec EJ257 CP piston set (22cc) New OEM STI black Nitrited 2017+ crankshaft New OEM STI connecting rods New OEM rod and main