hey Alex

If you use your brakes alot in the 16v the ABSsensor getts caked
with brake dust and malfuntions .I have had to clean mine a few times.

but the OVP will set the ABSLight on and make starts diffcult too, and a bad idle, I ONCE bought a KAE voltage reg and it was broken before I put it in. so I personally don't like them

Siemans is OEM