Oulton, Brands and Snetterton are all now 102db static test for "loud" trackdays (they'll be 105db for ACU test days as that's ACU rules).
102db will be OK for most race piped 2t's.

Donington varies, it was something crazy like 112db last time I was there but it's always drive by only from the track side sensors.

Cadwell is 105db static.
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