Don't ruin your car. Like everybody said, stock is slow...no point to go waste money on useless **** like this when it could be used for more parts in the engine . Anyone I race/ have raced all thought my car was slow since its 4door fwd and just a grand prix...not debadged and only exterior mods to it is the hid's but everything else is stock. It even has the factory 5spokes in 04... it's your car, do what you will...we're just sayibg it doesn't sound like the best idea.