On a performance motor with head work,power commander,k&n,1550 kit,se cams,ect.I need to pass up coming bylaw and my v&h long shots are sitting at 103db at 2000rpm,legal is 96.If i take my bike to a dyno tunner with stock mufflers what should i expect bysides a power loss will i get pinging or carbon build up or maybe over heating?I did look into the jackpot dyno mufflers and i might try them with my stock headers back on and maybe they will do the job and with any luck i might not have to play with the commander.Thanks