NEW IN BOX FROM SUBARU EJ257 2.5 LITER SHORTBLOCK. 

THIS SHORTBLOCK IS STANDARD ON 2008-2013 US MARKET STI.  THE 2.5 LITER BLOCK MAKES A GREAT UPGRADE FOR WRX MODELS.

THE US STI BLOCK FEATURES A SEMI-CLOSED DECK FOR INCREASED STRENGTH, THIS MOTOR IS PHYSICALLY A BOLT IN FOR ALL US MARKET WRX AND STI MODELS.  WRXS WILL REQUIRE ECU TUNING, BIGGER INJECTORS, ETC. THIS IS NOT A COMPLETE MOTOR IT IS FULLY ASSEMBLED BOTTOM END,WHICH CONSISTS OF A BLOCK, CRANK, RODS AND PISTONS ONLY,  YOU WILL NEED TO REUSE OR REPLACE CYLINDER HEADS.  THE OEM 2.OL WRX HEADS WILL BOLT ON FOR THE 2008-2012 2.5 BLOCK BUT THERE WILL BE A BUMP IN COMPRESSION. 

THIS SHORT BLOCK DOES COME WITH THE HEAT TREATED CRANK IN IT.