New OEM RA Shortblock W- Forged CP EJ255 Pistons 99.5 w- Race Bearings 99.5 Wire Harness Connectors Height: 42 mm

Height: 42 mm

King Performance Rod and main bearings

reduced driveline shock

No longer do you have to modify your fuel pump bucket to fit in an aftermarket pump

map and compensate boost

New OEM RA Shortblock W- Forged CP EJ255 Pistons 99.5 w- Race Bearings 99.5 Wire Harness Connectors Height: 42 mmOutfront 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 the D25 cylinder heads found on the 06 14 WRX and other EJ255 applications. This configuration includes: Custom Outfront Motorsports spec EJ255 CP piston set (24cc) for D25 Heads New OEM STI black Nitrited 2017+ crankshaft New OEM STI connecting rods King Performance Rod