Boxster 987 s - how loud?

[Spadey1]

I have a 2005 m/y 3.2s with a standard exhaust. I have done track days at Bedford Autodrome and passed the static noise test (101db(A) but never bothered to ask what it registered at. I am looking at a trackday at Thruxton which appears to have the lowest static test in the country @ 90db(A). Does anyone with similar have an idea as to how loud a 3.2 is likely to be / have you passed the test at Thruxton in a 3.2? I reckon it should be alright but would be good to know before I shell out.

A mate also looking to do Thruxton has a 997s (pre-2009) which I suspect will be more problematic than the Boxster but if anyone has any info that would be appreciated.