If he has any issues with the rearend, take it to the dealer and bitch. They will put in the 06' rear which is much better than the 04-05. I had mine replaced twice, oops.
http://i255.photobucket.com/albums/hh152/evil8/BlackCaddy.jpg?t=1207015758
Are you going to trade your current car? Or pay down the loan and sell outright? One thing you have to look at is if you trade in the current vehicle it will offset some of the taxes on the new purchase. If you sell outright, that offset is lost.
The air from the A/C would have more oxygen in it than the exhaust. It would be cooler as well, and would actually continue to run. The DEI setup would eventually starve itself of oxygen and fail.
Does the SEC win the national championship every year? No , So Fuckem!! Is Ohio State going to the National Championship three years in a row? Ohio State triplepost in the National Championship!!!