Anyone running the Magnaflow 15306 two in, two out cat back? I like the look of the Magnaflow 15306 with two pipes exiting passenger side at 45 degrees vs. the TRD exiting both sides at 90 degrees. I am wondering which one is noticeably more quieter than the other compared to stock and which one gives the most power increase, especially when towing. I have received mixed opinions (imagine that!). Thoughts?