messing around with the exhaust ?

i'm sure some of you pplz in here have modified the exhaust. my state does not check pollution and, if they did, i could always pour 10-12 ounces of acetone into a full tank of gas. that will make it pass .) point is, if i want to ditch the cat, i can.



the problem and, therefore, the question is, how much range does the fuel injection have? then there is my intent, which is not to make a drag racer, but just to warm it up a little. i know the potential, and plenty of it, is there. just taking the lid off the air cleaner coffin makes it run a lot faster (try it!)



there's a difference between quiet and silent. now i have silent. quite would do, nicely. i don't want any loud noise to lull me to sleep, on road trips! i'd like to replace the air cleaner and modify the exhaust just enough to release the power i know is there, without leaning the engine out (due to exceeding the limits imposed by the fuel injection) and ruining it. now my car runs perfect. don't need anything that will mess it up...



someone share their experience?