Well first of all the trans rebuild was mandatory. it was slipping and had 100,000 on it. The car was an inheritance and I was not going to just trade it in for something else. at this point I could easily go turbo and have a trans that can handle it. but I am going to stay N/A for now. I love the 3.69's on the street and I still get 29mpg on the highway and about 21 street. 95% of my miles are highway.