Just installed the FRPP mufflers (PN M-5230-MGTCAI) on my 2011 automatic 5.0, compared to my 2010 4.6 Magnaflows I like the FRPP much better. They are actually louder but with no drone, (especially when you first start it up) but not obnoxious. I am thinking to going with with Heart Throb H to...