^^
From what I understand -- one of the overall effects of a freer flowing exhaust on any (gas) engine can be a small loss of bottom end torque and/or small changes/shifts in the torque and hp curves.
I sure do like the IXILS so far though -- great look and great sound -- I go in for the TOR tune on Thurs so I guess we'll see.
As to my sensitivity to these things --- well --- I may just be out to lunch too
