I went with no resonator, straight pipe between cat and muffler. For the tailpipe, I went with 2.25" crush pipe vs 2" mandrel bent, much cheaper, looks better coming out the back, and the slightly diameter should help counteract the crush bends.
Total cost was $500 and it sounds awesome! The low rumble around 2000 RPMs sounds like a big V6.
I'll post a video on the Facebook page, hopefully get some GoPro footage as well.