It was me that had the studs wreck my front exchanger. The outside part of the track blew and when it did, it put a hole in my exchanger. I still had lots of track left, and didn't notice that there was a hole in my exchanger. Decided to carry on. I was about a mile from home. A little while longer, my temp light came on, and right away, the engine seized. Needed new pistons, rings, heat exchanger, track. Also took the head cover to a paint shop to make it bright red again. It was wrecked to.
I'm not sure, but I dont think heat exchanger protector would have prevented this. I wouldn't bother with them. If your track is farly new, just go ahead and stud it with the tunnel protectors.
Next year your going to want a new RX-2 ER.