Originally Posted by DeathRattle
Low shot of nitrous in that case. Not too much you can do to that engine for cheap. What people do with those four bangers or small v6 is turbos but that is out your price range. Nitrous is the option for your set up. Fuel injectors can get expensive so I dont think that is an option but you need engine mods to increase injector size/lbs. Stock motor you will just kill mpg and flood if you go crazy on injector size. All the little bolt ons wont really get you anywhere besides making your car sound like a chainsaw with that exhaust.
Actually a flowmaster sounds real mellow and deep on pretty much anything that I've tried.
My DD is a 88 Mercury Tracer (wow!) with a 1.6L Mazda 4. A friend gave me a Flowmaster and the car had no muffler at the time. Presto! I fabbed up the rest of the exhaust to go with. It's real mellow sounding- not AT ALL like those stupid glass pack "performance" polished, overpriced, look-at-my-POS that can fly with my "cool" wing, mufflers!