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Ships within 48 hours · Estimated delivery Aug 4 - Aug 9
CFD optimized and validated in-house for maximum flow and thermal management
321 stainless steel conducts less heat than 304 stainless steel
the response in the non linear range is considerably less orderly than shown in the graphs above
100% CNC Drilling & Tapping
New OEM RA Shortblock W- Forged CP EJ257 Pistons 99.5 w- Race Bearings FA20 Cams CFD optimized and validated in-houseOutfront 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
