Ya! i understand not everyone mod their car for race.
If you are modding your car as a hobby and not for race. Would you waste the money to put a standalone, cams or any other performance parts. If you are not revving the engine, what is the point of having all this item.
Try to remember putting a 20v engine or s/c engine into a corolla is not considered as modding. They merely just an engine transplant.
If a Vios, Altis fail to get you from point A-B, you will still get a factory warranty.
If engine transplanted car cant get you from point A-B, that is a disaster because you will have bear everything yourself.