We in the Soo build our own fets and offer installation in locals guns. When we get guns in, it is the first thing we suggest to put in as far as performance IF the motor has neodymium magnets (More back EMF from neo motors). If the motor is ferrite, we still suggest it as a reliability aspect to the gun. Our fets come in a small package with a built in poly re-settable fuse. (I am pretty sure its a 34 amp trip, and can change depending on the setup) Our fets are also not hardwired in, making it easy to replace a unit if necessary.
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