ok im gonna end up buying one of these two midpipes and hook it up with the original 40 series flows. now, these two more or less run for like 150 so i will chose one of these based on sound and power gains. im sure both are waay better than the crappy factory h, but does the mustangtuning x produce that much more than the mac h? does the mac sound better than the x? are these two around the same in loudness? im on a tight budget, since im entering college so help me chose wisely.