|
Hi, 10-15kg as a guess, it's only the perforated pipe, resonator, straight parts and backbox (muffler) that will be new materials, I cannot make the bends. I was surprised as Ecky said that after the pressure wave there is a vacuum (with quite a window) which helps clean the cylinder of burnt gases so I will have to keep the original layout and pipe diameter. I wrongly assumed back pressure was to suppress the noise rather than to help combustion
|