Trackday noise limiters?

[21TonyK]

Is there such a thing you can bolt-on to an existing exhaust to reduce noise levels for trackdays?

I saw mushroom like "things" on some cars at castle combe a while back which I assume were to reduce noise levels.

I'm thinking S2 Exige with ITG + Larini Sport with side exits + decat > 100db and too much noise for most tracks?

[kevin ritson]

You can get a supertrapp (not a crap '70s band) but it's not good for the engine. Best to put the cat back on

[21TonyK]

kevin ritson said:

You can get a supertrapp (not a crap '70s band) but it's not good for the engine. Best to put the cat back on

Cheers, just googled them and I guess you mean this sort of thing?

http://www.demon-tweeks.co.uk/products/ProductDeta...

What sort of harm do they potentially do?

Edit:

Just found this which looks better and shouldn't create as much back pressure.

Merlin Muffler

Anyone used/using one?

Edited by 21TonyK on Saturday 15th September 11:23