I have a 21 Spyder RTL and there is a Service Bulletin out to do a mandatory flash of the ECM that fixes a low compression starting issues. I had to download the latest version Buds 2 from Powersports-diag. It still says it is the 21.1.0 which was the version I had originally but it did not show the ECM flash but installing the latest version (Added 4-15-22) fixed that and was able to flash the ECM. Not sure if this affects other years but it may be for all 1330 engines.