I don't know if these will fit the 3.0 or not but they deffinitly fit the 3.5 in the sport. These are great cores to send to Maxbore. one is from E-bay and one is the orginal off my sport. I'm looking for 45 shipped each. The bigger throttle body was worth every penny of the $150 I spent doing it. And it drove just fine with the stock tune when I swapped it on. It improved my MPG slightly and deffinitly helped the top end a lot.