We have a gen 1 header that we tried on before we put on the Brock's alien head header set up on the gen 2. My question is, it looked to fit well, I don't know what 1st gen header it is though. The Brock's alien head muffler slipped onto the 1st gen header where the mid pipe mount goes. What do you all think about this? I can get a free 4-1 header for my gen 2 bike, just need the can or mid pipe to work. What does a black alien head can cost?