Got mine on ebay.Looks like the same concept as the uh...Remus Responder setup? Granted the Remus is a bit more $ but at least in stock. Anything else similar to these two products?
https://www.ebay.com/itm/Pedal-Chip-X-Box-Throttle-Tuning-Volkswagen-GOLF-7-GTI-2-0-TSI-228-HP-2013-2021/163241539253?ssPageName=STRK:MEBIDX:IT&_trksid=p2057872.m2749.l2649