[DeTomaso] PI Headers and Mufflers

[Göran Malmberg]

As the PI muffler was mentioned, I have a pair of those for the PederPanter.  
How do they sound, anyone that use them? Compared to originals, louder,
the bass note, resonances a any particular rpm etc. They got 60mm inlet
and dampening diameter, but empty tailpipes. Well, I should know within a
month or so, but I would lik to know right now. 
Goran