Once you have started a groove in the muffler bottom, increase speed until the bit punches through the muffler. You can drill more than one hole in your muffler, but using a smaller drill bit allows you to control how loud the muffler will get. If you want a louder muffler, simply drill more holes.
1. Slide the 3/8-inch drill bit into the drill chuck and tighten the chuck by turning it counterclockwise.
2. Locate the drill bit against the backside of the muffler. It in reality doesn't matter where you drill the hole, but if you want to make sure that moisture does not collect inside the muffler, drill on the bottom of the muffler.
3. Set the drill speed to "slow" and begin drilling.Drilling a gap in a muffler is recurrently done to pocket money the sound of the muffler. Baffles inside the muffler feature to shorten bang and better airflow. On the contrary, provided you'd comparable to drill a gap in your muffler to convert the airflow dynamics of your muffler and to produce the automobile louder, you'll commitment to distinguish accomplish this.
Instructions
