+1

I don't know how anybody could know definitively without trying different locations and testing on a dyno. I don't know of someone who has actually done that.

When I installed mine, I assumed there would be some loss. I prefer the nice sound over the performance hit. I had the x-pipe installed roughly in the same location as the resonator.

Also, it cost me $300 just for the install at a local Mineke/Midas. So, if you're going to do it, $150 sounds reasonable to me.

Good luck.