how much do 3.73 or 4.10 gears run usually

 

The gears themselves aren't too expensive- it's the install that's killer. Unless you POSITIVELY know how to do it, I would have them installed by a professional. I can't remember what the total cost of mine were- $450 after gears and labor???

 

If you don't do the CAI, do the free mod on the air box and remove the silencer and cut a hole in the top of the box. I did that about a week after I bought my car after seeing it somewhere on here and must have gained about 15 hp right out of the gate in the higher RPM range.