to the guys with the Greddy Ti, are you on stock cat? HF cat or test pipe? What about the silencer? Im looking at getting a Greddy Ti but will keep stock cat in hopes of it not being too loud oh and also a silencer

 

They don't make the Ti anymore so you would have to find one used, as well as the silence.

I have mine full 3" TBE with resonated tp. Sounds nice and throaty but a bit loud inside and out. The whole exhaust system including muffler is super light as well.