Hello together I want to switch from a V8 CO2 to a noise converter to a new TM3P. Was today in CH in a store and there the MA informed me on demand that burners are also taken back. However, at worse conditions than private sale, is clear. For the evaluation is allegedly enough the vehicle license. Then one bid is made and one can accept or not. Vehicle is also delivered home and other taken. Is this all really s o and has someone experience with it, price reductions, procedure in CH? Thank you & Ciao Christian