Yes, it's a solid stare shunt. The only question is whether there's more than one stacked. You need to look at it edgeways on to see if there's one sitting on top of the other, but .005 is a common value, so it's probably on its own. You can solder another one over the top of it to change its value. First, you have to decide how much extra power you want. To get a 20% increase, you need to change its value to .004. You could unsolder it and replace it with a .004 one or solder a .020 over the top of the existing one. You can find them on Ebay. Search for R004 resistor. You need a 3w one for 25A, but if you stack one over the other, 2W or less would be OK, as it will only take 20% of the current.