Help me decide - which air cleaner ?

OK, I've got a question. Where's the coil that's shown in the first 3 pics? It's nowhere to be see in the 4th pic of the stock air filter housing.
JMO, but I don't see why everyone is jumping all over the "must have" stock air filter when your engine is obviously not stock-appearing.

Your engine, your car, what look do you like best?