Invader's good. Look him up.
I installed a Leo Vince aluminum along with a Power Commander V, w/Autotune module. No cat needed. This pipe has a bung for a CO2 sensor which sends data to the Autotune.
Add a free downloadable map similar to your setup, let the Autotune do it's thing and it adjusts fuel settings perfectly to your bike and location.
Better power and best of all Smoothhhhh at small throttle openings. No bike is worth very much without smooth roll-on/roll-off.
Do the PAIR valve fix (search please) along with this.
Not sure, but I think Arrow installs sensor bungs, but you can have one welded into any pipe.
Hope that helps a little.
"I don't want a pickle, I just want to ride my Motor-sickle"