aerohead,
Can you explain what you mean by C- and _C bolt patterns? I thought that just about any 4x100 bolt pattern wheel with a high offset would fit on a '90s Protege, Civic, Corolla, etc.
As far as benefits, I'm not out much money if I don't see an FE gain. I found a junkyard that will ship me a set of '86 CRX Si wheels for $150, and I would just transfer my Michelin Harmony tires to the CRX wheels.
I also like the looks of the gen1 CRX Si wheels (sure beats my black steelies)...
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