Fabian, with a belly stinger and silencer you would be in stealth mode and draw zero attention to the pipe.
With some ingenious disguising they wouldn't be able to see it either.
then, no noise, no exp-chmbr look, no problem.
don't seek reasons to fail, seek reasons to succeed.
now, about everyone else;
any normal person with a positive mind can make a torque pipe. Its the negativity that stops people cold.
I made my pipes without any pro equipment at all except for when I had a muffler shop curve the two header pipe sections for me.
Some people who saw it asked where I bought it from. ha! as if it was factory made.