Subaru OEM EJ257 Nitride Treated Crankshaft Subaru STI 2004-2021 / WRX 2006-2014 | 12200AA430 vendor_GReddy Machined flange faces and internal

Machined flange faces and internal bores provide maximum pressure-tightness and unrestricted flow

2012-2013 Honda Civic Si (USA/JDM models)

we ditched the turbulence-generating

Part #: APR-AB-300014

It has almost identical features of the VF39 with a thrust bearing and a P18 exhaust housing

Subaru OEM EJ257 Nitride Treated Crankshaft Subaru STI 2004-2021 / WRX 2006-2014 | 12200AA430 vendor_GReddy Machined flange faces and internalPart #: 12200AA430 This is the Nitride treated crankshaft out of the 2010 Subaru WRX STi EJ257. Nitride treatment hardens the surface of the crank, which prevents scoring caused by a piece metal getting stuck between the bearing and the crank. By increasing the hardness of the crankshaft surface, any material which gets caught between the new surfaces is simply ground down and filtered out through the oil, potentially preventing bearing failure. This