No idea where one can find Promax or Weltmeister chips, but if you’re interested in other chips as well, Speed-6 also made one for the 968 called “ Racer X “ so you might find one of those on a net search . I believe the Racer X won the chip shoot-out contest over all the other chips ( info should be in the Chips and Salsa thread here, which may also have some indications of which sources could have them, but it’s been so long it’s doubtful anyone still carries those ) I could be wrong, but think RS Barn also made a performance chip, although they retired the business so no clue where you could get your hands on one of those either .
I had a racer X before I converted to the Supercharger, at which time I gave that chip away to another 968 owner .
