Hello. This is my 1st mustang / muscle car that i purchased. I would like to get some extra horse power. I would like to go basic up grades like exhaust, ram air etc. what do the rest of you think...? what is the best bang for the buck...? looking for good solid advice. Thanks for helping.. Texas Mustang GT 2003

 

Best mod you can do is gears for your rear end. Id say go with 3.73s, 3.90s, or 4.10s. Youll also have to get your speedo recalibrated with a recalibration tool like a tuner or a chip.

 

Most people begin with Intake and Exhaust (mostly exhaust).

But as MattJ pointed out the best modification short of a power adder is Gears (it is the poor man's supercharger). I would purchase at least 3.90 or 4.10 depending on your preference/ daily driving distance etc.

DON'T FEAR THE GEAR :downtown: