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Specs for JDM Integra Models

As you can plainly see:

SiR II INTEGRA and SiR/SiRG INTEGRA both run the 178 bhp 1.8L 10.6 CR B18C with the dual stage IM that you see on our 10.0 CR B18C1's.

The flange on the b16a IM is made to match onto a PR3 head (b16a and jdm itr b18c or usdm itr b18c5 head) won't fit on a P72 head (b18c1). We told you this already.

They have different coolant ducts and bolt hole alignments and ports (high approach vs straight shot taller port).

All you have to do is look at the flange and the head bolt hole patterns and you'll see what I mean.
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