I havent had any problems with it on my 03'. Honestly I felt some power gain but
I descreend my MAF at the same time. I did feel better throttle response wich would make it worth your time in its own. I didnt check mpg because I have learned that if I worried about that I wouldnt do have the stuff I want to. Off topic but I was amazed at how you could watch the needle move when I sprayed 100 wet shot,