Too loud for Bedford. Need some advice.

[XKaLiBaR]

Well yesterday, got a warning for being loud whilst I was near other cars. However, after a spirited lap chasing down a gt3, I set off all 3 sensors in one lap

Currently, I have evolve carbon fibre airbox, supersprint light weight race exhaust and 100cell cats. Done 3 days at Bedford this year already, and never had a problem. However, yesterday, was the only day it was not windy. Which might of effected the noise travelling. I can't think of any other reason.

Now, I really do not want to get rid of the exhaust or the airbox, so I am wondering if putting the factory cats back on, will reduce the noise?

Anyone else with a csl and ss race had issues there?

Someone mentioned, opening up the exhaust adding more things? (Can't remember the name) inside it.