Hey guy I was wondering what else parts do I need for my B16(SIR) to be drop in 90 civic si. So far I have the SIR with a B16a2 intake manifold, motor mounts from place racing, pwo ecu. I have the B16a2 axles will that work? Will I have a problem running the B16a2 intake manifold? I have both the motors B16(SIR) and the B16a2 all complete. What else should I swap between the two motors. I want to run the SIR instead of the B16a2 cuz of the OBD2................. thanks

 

you need upper 90-93 ls radiator hose and 92-93 gsr lower. a second one wire o2 sensor if not alklready had one. thats about it. it sounds like you are pretty done.

 

you'll most likely need an adjustable shift linkage b/c the trans sits in a different place than before. you have the wiring harness?

 

I'm going to use my D16 engine harness. About the second o2 sensor the SIR's exhaust manifold has two sensors but I have a DC sports header off an ITR and that header has one hole for the o2 what should I do, where do I put the second o2?