Actually all the water pump failures were from LET not 178mm ASP. To be fair about it the crank pulleys never had one single problem, it was the water pump pulley that failed. ASP must have a different manufacturer or inhouse do thiers. Whoever did the first batch for LET went bad, so far no one with a replacement from LET has had a recurring problem. There is no bigger sizes available from ASP after 5 years of producing them. You have to wonder if it was safe for the cars why didn't they make the other sizes?

Mr.Photoman it does seem like there is more bad posts about them vs good posts. I still believe no upgraded heat exchanger, pump, etc. shouldn't be needed from just installing a pulley regardless which one. If so then it's potential for harming the motor is greater than the others and shouldn't be used.