Just thought I’d let peeps know I had my car noise tested at Donny at 92-93db drive by…
I have 2bular, 421 manifold, de-cat and 8" GT3 exhaust with an ITG airfilter.
Obviously a Supercharged car would be loads louder.
Is the limit still 98db drive by?
Any ideas what the db for a supercharged car with a TRD airbox and 2bular 8x22 oval exhaust + sports cat would be?
I’m intending on doing quite a few track days next year, but I really don’t want to book myself in, pay the cash, only to find that I can’t drive on track because my car is so noisy 
you might have no trouble one day and be black flagged the next, atmospherics can have a large affect on noise, but you will be close to the limits on drive by of 98db with that lot
Yes mate
My supercharged stock manifold,sports car & 2Bular GT3 8x24" with induction was 93Db Static at Bedford. I buzzed the sound meter in the last session of the day and was black flagged. Prior to that I Was upshifting at 5k rpm before the sound meters.
Hmm, that’s verrrry interessssting John - thank you. What was the weather like at the time?
I’m telling anyone interested in a de-cat not to bother if they’re running at a UK track but …
Over cast mate with sunny spells. Mostly damp around but the track was dry.
Cheers John! Just like the BBC 
What’s the forecast for the week-end?
