would you have any recomendations on a "exhaust system" for my 2010 103cc Triglide Ultra Classic trike? I am looking for good torgue and mellow sound (not too loud). I want a Stage 1 system first and later going to a Stage 11 when I get more money. I need to get rid of the HEAT and better response. I was thinking of cutting out the CAT guts and adding a recommended slip on exhaust.? MY older bikes didn't have all this Cat stuff and weight being a 2 wheel bikes before. These trikes are heavy and need more torgue. I know a CAM is needed but for now a Stage 1 is differently in order.