i was reading a thread and i read that even after adding mods and upgrades that your car can lose hp, i was wondering how and what should i add to my 2003 mustang v6 to get more hp rather than losing it.
i have a few quetions about it... how much hp does it have stock? ive added magna flow duel exhust system and an AmericanMuscle cold air intake system how much horse power does it have now? what other suggestions should i add to increase my horsepower?:scratchchin