different b16a's

whiche ns is the usdm one b16a2 or b16a3 or both or what thanks i know the b16a1 is jdm but those 2 i am unsure about

the a2 and a3 are both usdm..... a3's were in del sol vtecs and a2's were in 6g si's.

what is the a1?

Originally posted by superaccord
what is the a1?

the a1 is the first generation b16, seen in 2g tegs (rsi/xsi) and 4g civics/crxs (SiR)

B16A1 is stampt on EDM Civic SiR's, JDM is just B16 without a number.
But most of the time when speaking of a B16A1, the first generation JDM B16 is meant out of the Civic/CRX SiR and the Integra XSi/RSi.

thanks for the info, I never thought of your european versions (although I know it would be a different designation than jdm since its different power, etc).