Don't know where to post this so sorry if it's wrong.
Does anyone know the size of the bolts that hold the exhaust back box on? Flange fitment.
I got an Irmy back box yesterday and had it fitted but it sounds crap cos the bolts are rusted and the back box isn't held onto the centre pipe properly. So need to replace them. I've been told it'll make it a bit louder, maybe not?, but replacing the bolts would be a good idea anyway.