Hey guys as you all know FJC parts are strangely more expensive then some vehicles. so i was wondering what i could do to increase hp torque while not killing me mpg. now i dont want to put a load of crap on my engine. i just dont want to have to resort to a turbo or supercharger just to make it faster and stronger. also what kind of exhaust would yall recommend? ive been looking at flowmaster, borla, and magnaflow. i just want a real deep sound that you would expect to hear on a jacked up chevy or ford.