I hope that’s a joke:dunno:? and as for x < Apexi I disagree the Apexi doesn’t muffle the exhaust note, as it still runs through a straight pipe but the Varex does. when the flange is closed it forces the exhaust to travel through the muffler 3 times before exiting the system and the price of the Varex is way better the the Apexi electronic IMO.