New OEM RA Shortblock W- Forged CP Hybrid Pistons 99.5 Wire In ECU's Programmable Math Processing

Programmable Math Processing

(1) OEM Port & (1) 1/2” NPT Port (Plugs or Adapters Required)

and turn up higher boost pressures

Balanced end-to-end

CDI specific windings

New OEM RA Shortblock W- Forged CP Hybrid Pistons 99.5 Wire In ECU's Programmable Math ProcessingOutfront 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 S20 cylinder heads found on the 02 05 WRX and other EJ20 applications without cylinder head combustion chamber modification. This configuration includes: Custom Outfront Motorsports spec Hybrid CP piston set (25. 5cc) for EJ20 Heads New OEM STI black Nitrite 2017+