I went through this a couple of weeks ago. As said, the R tune will not show ALCH%. My problem was the ALCH_LEARN was not showing and a rescan fixed that. On the rescan there are multiple choices and I originally selected the first one that seemed correct but only had 54 PID's and ALCH_LEARN was...
I have a similar noise that I believe to be the external damper on the passenger side of the transmission. I don't know what years have it, but mine is a 2019. If you can put the car on jack stands and get under it and have someone move the shifter between gears you can see it moving hear it...
I have a 2019 Bullitt and had one on the passenger side rear diff bolt. Did not reuse it when I installed the diff bushing lock outs. After install I have clunking in the rear. Been wondering if reinstalling the damper would help. Also not sure if it can be used with lock outs.
Take a look here https://www.troublecodes.net/p2codes/p2119/ Sounds like the drive by wire system sensor. I doubt it's tune related since it still happens with the stock tune. I'd probably leave the stock tune it and take it to the dealer under warranty.
I like it a lot. I didn't spend much time with the stock one, only 700 miles worth. The MGW feels much more precise and doesn't lock you out in high rpm shifts. The weighted knob just improved it even more.
Following up. Went with the Slammer in the translucent smoke and I love it. Really improves the shifting characteristics, more so than I thought it would.
The history: Loaded Lund flex tune last week after running tank to 0 miles to empty. Filled with e85 and followed instructions. Alch % maxed at 67 and learn flag went from 0 to 1. Dash afr gauge read 10.8. Ran that tank all the way out, refilled with e85 and on drive home alch% went to 85 and...
Really thinking about getting this. Anybody else using this? I see OP opted for the billet upgrade connections, not sure if I can warrant an additional $80 for those two small fittings. $435 with them.