Noice level advice - failed by 5db

[Salisburytree]

Evening all,

I was turned away from thruxton today for producing 95db, had a feeling I wasent going to get on track prior so wasent too bad of news to take!

However I'm abit puzzled... I tested 95 , stuck a jetex 4inch silencer on the end, retested and still 95db. What could have gone wrong there and what's my best move in terms of shifting the 5db , ideally getting to around 85 if achievable.

M54 engine, straight through 3 inch which already has a jetex decibel insert (the silencer was ment to be my back up!)

Thanks in advance!

Unfortunately I can't edit the title ... noiSe level!

[brillomaster]

Do you need the straight through exhaust? Obviously the best way to make the car quieter is reinstall the standard back box. That might be enough, if not, reinstall cats too.

Surely it wouldn't be that hard to get a secondhand back box, ideally, the one you kept in your garage, hopefully...?

But I do sympathise... I've accepted that I'm never doing a day at thruxton with my silly loud exhaust on my boxster. I foolishly binned my original exhaust,which I regretted about a week later, sigh...