Originally Posted by
tyrell34pt
Would disagree with the outlet being the difference, although mine are Zeros bought from GAD.
I had a local fabricator add 50mm length in to the receiving end (60mm diameter s/s pipe). This works because the box is hung in the cradle and does not have specific fixed hanger positions. This mod' meant I was able to use Zt back boxes for the Zt-t that I have.
What a difference!! A little louder and a lower more bass note and along with the BBK T/B plenum and cold air kit she doesn't half shout when you let loose with that right foot.