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Discussion Starter · #1 ·
I'm about to have the BBR225 upgrade for my NC, but the car is going to be for trackdays, so ideally I need to stay below 90db static.

BBR do their own centre section and grand tourer rear silencer, does anyone know what sort of noise that makes?

I have seen a few YouTube Video's of the NC 225 cars on track, but no mention of which exhausts.

I have read that the Cobalt back box is quiet but reduces power?

Racing beat say their Power pulse rear silencer is quiet, but no actual figures.

So, any advice welcome.
 
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