No DB baffle, Stock air filter.
FYI about the drop in HP from the crank to the rear wheel:
I had my stock 2018 Multistrada 1260 Pikes Peak on the same dyno yesterday as well. It's rated at 158hp by Ducati.
It pulled a 141.04 HP at the wheel representing an 11% drop.
This was inline with my expectations given other dyno run results on the same bike.
As previously mentioned, I'm not too pleased with 140.11 at the wheel given the ecu flash and the no cat-exhaust on the Monster.
145+hp was expected. Perhaps I was too optimistic.
I'm familiar with the Rapidbike having had one in my previous Panigale. In fact, I still have it and earmarked for the Multistrada when the time comes.
I'm not blaming the exhaust. I'll check my air filter if it needs replacing but I'll try to get some feedback from Rexxer and take it from there.
Edit: ECU flashes are great as long as you can tune at home and revert if need be. Sending it out is a pain.
If I had to do this ECU mod again, I would use a Rapidbike unit for several reasons namely: auto-adaptation, customizable and Dyno tune-able and bike portable should you buy another harness.