i have a 05' mustang gt. i am looking to increase the power by adding on simple basic bolt on's...throttle body, entire exhaust system, pulleys, supercharger exct... would it be a good idea to get the engine tuned(engine tuning) before of after i add on the aftermarket parts.
Tune it before hand, a simple tune up will most likely increase the performance of the car by itself. Also when you start adding things like a supercharger you must have a properly running vehicle to take full advantage of the power a supercharger adds. Lastly as you add more things to the engine compartment it becomes harder to do things like change the spark plugs. Good Luck