These parts are designed to mount an MSPNP or DIYPNP Megasquirt ECU to an NB Miata using the stock mounting studs and nuts. ABS filament is recommended, but not mandatory. Please note that hardware will be needed to affix the brackets to the ECU, 1 small nut and bolt per bracket is all that is needed. Be careful when installing the ECU with these brackets, as it's quite cramped and difficult to work underneath the pedal box, and forcing/jerking it can cause the parts to snap. Once installed, these hold the ECU in place incredibly well, and by using this method you don't have to do any drilling/tapping, and it does not involve any sketchy zip-ties. Hope you enjoy!
Any ABS recommended