I have an 03 Cobra and I am getting ready to start modding the car...The only thing I have done to the car so far is a MAC cat-back, a JTL CAI is in the future plans as well as the MAC pro-chamber. I want the most bang for the buck and am considering upgrading the stock eaton to a whipple. I just dont want to end up blowing a to of mony when the same HP level can be reached for a lower price...700 is the goal (for now)...any help, sugestions, and any other imput will be greatly apreaciated...