ok so the other day i went and picked up 24 for 30 bucs about a 1yr old. anyways to get to the point. i was talking to my buddy to day and he told that the pcm is going to have to b re tuned for the 24 cuz it will have the car run bad or even break some thing. i only picked them up do to the fact that my 19 stockers are **** and leaking and cant get my code reader to do a cyclinder bal. test it starts to but ither turns the car off or the readers light just stays on and dose nothing.