I got a 1979 BMW 320i for free. The car is complete crap, but it has original BBS's in good condition. My question is would these fit on my 02 Si? The BBS's are 4 lug, but I don't know much more about them....

 

Try it and see if they fit?

 

See:

https://honda-tech.com/zerothread?id=1846686
https://honda-tech.com/zerothread?id=1962792
https://honda-tech.com/zerothread?id=1541181

Also - stickied at the top of this forum is a topic called

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It says:

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Which is why it's been changed from "Question Time". You are a...

 

the offset will be lower and also, depending on what year your car is and what diameter the wheel is than it may not clear your brake calipers... but yes, they are 4x100 just like your 4 lug civic.

 

Bore size will most likely be slightly different.