attempt number 1 - Toyota Sprinter, 1.6 liter, 1994

they measured on the street ... there was no one nearby ...
I repent a lot. and I know.
release then without a catalyst, direct Apex "i N1

In the same place, there are a lot of restrictions on measuring dofig - it’s impossible indoors, cars within a radius of 15 meters (something like that) ...
And to be honest, real 100 dB is really a bit too much.

and I told you

It was necessary to first register, and then put Apex.