Greddy blow off

My other one wasnt being answered, but whoever has a greddy bov for the gt, is it loud? Does it attract attention? ONe site said its not loud but i heard that it was loud from another. I would like to hear the people who own it opinons. How are they?

You should realy give your other thread more time instead of making a new one. I have a feeling one will be locked now.