jdm b18c block will just read b18c, that is out of the sir-g which is the jdm version of the vti-r here in australia, b18cR is from the jdm type r, hope that helps you mate
JDM = B18c (engine number) SiR/SiR II integras
USDM B18c (engine number) GSR
AUDM = B18c1/b18c2 (engine number) Vti-R
jdm spec slightly produce more power than their international counterparts
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