Board Thread:Questions and answers/@comment-28036679-20160406192132/@comment-27306930-20160411193408

The RM2s are twice as fast, and 4 times more powerful. They are exactly the same size as the Nerf 130 motors, so they fit in perfectly.

I won't lie, you need a soldering iron and some decent skillz. It's not a mod for a first time beginner, but then again, it's not crazy bad like cutting the housing and reshelling the blaster for bigger motors. IMO, it's an inexpensive doable mod that has a huge return on investment.

You'll need two Solarbotics RM2 motors, a soldering iron, some solder, some 3 inch 20 gauge wire scraps, 2 or 3 3.7v IMR batteries, a AA dummy cell or two, a Phillips screwdriver, and a utility knife. And about 90 minutes.

You definitely won't regret it.