has any one put one of this modifiers on there car? if so, how dose it work? dose it work?

 

There would be no reason to use it unless you have a fully tuned setup with chipped ECU, different injectors, turbo, etc. Even then you probably don't need it.

It would do nothing for a car that's plain stock or has bolt on intake and/or exhaust mods (except make it guzzle gas, and look shiny under the hood).

 

thanks