Honda outsources some of their products to other companies like Mazda. Mazda produced some final drives for both Kia and Honda which are compatible. It's weird to think that the final drive for a Kia Sportage would be an improvement for an S2000, but aftermarket companies figured it out, bought them for $250, repackaged the item, and upcharged over $1000.

Also, I read somewhere that the TSX's Brembo big brakes can fit on our cars. I don't know the exact truth because I cannot find it again.

 

maybe contact N1 concepts, their Fit is using 5 lugs and 18" wheels