Seriously, don't screw with it. When you tamper with the exhaust system, especially by drilling holes in it, exhaust can leak into the car and kill you. At the very least, the car won't pass smog with all those holes. If you really want it louder, get a different muffler. There's lots of them. A internet search is your friend. Magnaflow. Flowmaster, Borla, the list goes on.
Do no drill holes in it this could also cause a bad air exhaust flo witch would really affect your engines performance. Just go get some cherry bomb straight pipes there legal and super loud and a perfect exhaust emissions
some glass packs
get some glass packs
should I dill the holes in the muffler, or end of the exhaust pipe? by doing this is it going to lessen my power or anything else? I have a 95 Toyota 4runner SR5 V6 3.0