evofixer wrote:I think the basic rule of thumb is to create as much volume of silencer as possible but everything is a compromise! i dont run cats, my centre silencer is only 10'' long and the rear silencers are approx 500mm long and 130mm(ish)diameter. i havent noise checked it as yet but i think it will pass noise ok. all the packing material is wire wool very loosely wound around the perferated tubes.
Is wire wool OK to use?
I've used it in a temporary insert when needed
But it sets on fire easily as I found out whist grinding. Sparks set some alight on a shelf in the garage
