I have only had this car for two months and it kept on getting worse. I put one step colder plugs, a 180 thermo, new o2 and fuel filter and wires and it kept getting worse. I had it on the scanner yester day and ran it up to 5grand and number two let go. Now I find out that the motor is for 04 only? Does anyone know why and is it possible to use an older gtp motor? Need any help I can get! Thanks guys.