I was pretty set on the Remus exhaust after hearin' some sound clips on Youtube. That was until I heard some sound clips of the SpeedART exhaust. Both sound really good, in my opinion. Which one would would add more power to my stock '07 Cayman (base model)? All comments on the positives and negatives of each are welcome also. This is a hard decision for me, I'm lookin' to y'all to help me make up my mind.