Thermostat OEM BMW or MotoRad

I was instructed by a friend who had some of m47 and m57, to buy thermostat only original from bmw, because everything else doesn't work as long or good.

I use them all the time with no issues.

I used one of the MotoRad safety thermostat's that have a 1/16" hole already in them, in my 84. So.. No, I don't think you'll have any problems adding a hole.

The replacement thermostat came from BMW. No problems this time.

I had to replace mine again after 6 months.

I replaced the t-stat with a genuine part and again no luck.

Just not Motorad--unless you want to replace it again in 6 months

MotoRad thermostat. Lasted less than 6 months.

Changed to genuine thermostat, no change. Needle tends to dip on higher load highway driving, but only occasionally. Obd temp is between 77C-88C.

never trust an aftermarket thermostat! Especially if it has MOTORAD stamped on it.