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What should my first priority mods be for my 4.6L. What I have in mind includes, cat-back (what sounds real mean?), pulleys, cold air, maybe a Throttle Body and spacer. Any other ideas, or personal good experience/ bad experience? Thanks again.
exhaust system, air intake then a diablo predator programmer.
i have all of these and after the programmer is when i really noticed the big difference. but i havel also talked to some poeple and a friend that has a mustang, they say that if you do not have an exhaust system that you really wont notice the power increase. but other people say they can.
From personal experience with Cat-Back exhaust that exits out the rear is to find out if its compatable with you spare tire, because some do not allow for the spare tire to be removed once the exhaust is installed.