quattroworld

squeeze / pull harder, sometimes it helps to use a pick-hook to release the catch(s).

You might save yourself a bunch of wrench time and parts money if you just contact user stuklr on here and have him code them out. Same goes for the secondary air injection system.

Another alternative to the EGT fix, if he is still making them, is to get a pair of "Adam's EGT deletes" - https://forums.quattroworld.com/classifieds-parts/msgs/28162.phtml
They simply plug into the engine harness where the EGT's connect under the Y-pipe sort of in the top-left-rear of the intake manifold.