[integrasedan]

some people do, but not all.

they have ferrari kits for toyota MR2
widebody kits for a lot of cars to look like race car

JDM bumper/light conversions, but it's still a USDM.

Vtec emblems on Stock LS/GS integras with stock engines.
Vtec emblems on american/mitsubishi cars.

I understand some people do it cause they like the looks and don't try to pass them off, thats okay. Go for it.

Then there are others who do mods to fool other people into thinking they got the "real" deal.