galpi, some of the advice you're getting here is a bit over the top. Open your wall in the area needed, and install some horizontal blocking between the studs in the necessary location. Use 2x6 KD lumber, which is dry. Screw it in place with some strong screws (not sheetrock screws). If you're concerned about transmitting vibration, use some construction adhesive between the existing studs and your new blocking.
Additionally, before you open the wall, you might want to consider what's in it. Walk around to the other side, think a bit. This is just generic advice. Barring that, cut a small hole initially, look inside, make sure you're not running into a waste line, or the back of your electrical panel, etc.
Good luck.
Additionally, before you open the wall, you might want to consider what's in it. Walk around to the other side, think a bit. This is just generic advice. Barring that, cut a small hole initially, look inside, make sure you're not running into a waste line, or the back of your electrical panel, etc.
Good luck.