17-25 FLT/Touring (excl. 23-25 FLTRXSE; 24-25 FLTRXSTSE; 23-25 FLHXSE; 24-25 FLHX; 2025 FLHXU; 24-25 FLTRX). Requires disabling 2nd, down stream O2 sensor (s) of 20-up EU models 1 2 3 ... 8