Re: 1998 Mustang GT Best way to increase hp/performance?
What to do? Well gears won't add HP but will add better take off as for the gears to go with here is what I found. 3.73's are the tallest you want to go with a 5spd and 4.11's are the tallest to go with on an automatic. As for power adders there are many you do. You have Cold Air Intakes, larger throttle bodies and mass air flow meters. You can do headers and cat back with H-pipe. Then you have the power programmers and turbo's and pro chargers and so on. The list is almost endless. Keep in mind that if you improve the air intake you should do the exhaust to really get the gains. Hope this helps.