Before and After Stage 1 Tune for 2021 S1000RR M by Bren Tuning

Wow, this S1000RR M is like a brand new motorcycle now after the Bren Tuning ECU Stage 1 flash. Fixed the torque flat spot for the US models. More power everywhere. Faster quick shifter up and down. Sounds way better, and I didn’t add a pipe yet. You can really tell the difference in how it sounds, even from the beginning at idle. Deeper, more aggressive. How it’s supposed to be I suppose. Grateful @brentuning thanks to @jeremyj7927 for the video.