i have a 2004 gt. here are plans for future mods as far as engine goes. i have mac flowpaths, mac prochamber off road h pipe, mil eliminators, removed air silencer. future: fipk, accufab tb, accufab plenum, 4.10,s. full length headers, comp cam, power chip, nos maybe later. i guess this is really my decision. if i keep saving money it i will have like 40 to 50k on my car. i don't wanna get this stuff done when my car is high mileage and has lost hp maybe. do i wait or get a loan and do everything now. any suggestions.