They're conveniently out of stock due to "high demand" probably has nothing to do with them failing and having to be replaced????

I've never even heard of them until you guys brought it up. I was confused as all heck, IPR - Injector Pressure Regulator, on the back of the motor. Never knew there was a company named IPR.

What's so bad about the stock oil cooler that you went that route? Stock is cheaper too...

 

stock oil cooler has much smaller passages easier to clog. the problem was the studs not the cooler the studs were installed at the factory. Some studs were installed with the small tapered side into the oil cooler threads were much weaker because the bottom portion of the stud had very little contact with the oil cooler threads and only had the top 2 threads holding the stud into place.

I took one of the studs and ground it flat and reinstalled it into the oil cooler and it was much tighter. IPR will be using a different supplier for the studs and will be inserting a steel threaded insert to eliminate this issue

 

I know what everyone claims with the stock oil cooler... once you have a coolant filter it's not really an issue anymore.

Glad you got it figured out though.