Originally Posted by Grenade10

My guess is it is an ususall break due to ???????

Yes get the King Head part and then replace the upper mount. I would take apart the full car and check for other wear items. I have broken very few parts on the car, that did not fail due to making a change and not looking at how it affected all items.

There was a company making the rear upper mount, so that heat does not affect it. I have one car with one and another with out, and have not had issues, but I know what I have to look for, and the correct exhaust header.

I may try an make a run of these and doing the front at the same time would make some sense. But it is probably not going to happen this year unless there is a lot of demand for it. But when I do this I was looking at doing 6 holes and changing the holders to rectangles. Think Top, Middle, Bottom and in and out. Would add middle in and up and down out to the current triangle options.