MT10 with Leo Vince Decat - dB test with different silencers

When looking for details of the noise levels of different silencers/mufflers and how effective DB killers or baffles were, I struggled to find a lot of content. So I made this hoping it helps someone else.

The bike is a 2017 Yamaha MT10. It is fitted with a Leo Vince decat pipe. Notably this pipe has a very small inline silencer that may make it a touch quieter than other decats that are straight through pipes.

The dB levels are measured using an iPhone app called Decibel X. I have no affiliation nor do I know how accurate it is. But I felt that as long as the volume was measured consistently it would be comparable. The measurement was taken from a 1m distance (3ft) at around a 30 degree angle from the rear.

The silencers tested were:
OEM
Leo Vince LV10
Scorpion Serket Taper Carbon

The last one is test with and without Scorpions own dB killer. It's a short open ended narrower pipe. I tested these as I had them all. No other reason.

After fitting the dB killer baffle the bike is still noises, but much more manageable on longer rides. It also has reintroduced back pressure which has made the standard map more responsive. It will be tuned on a dyno in due course.