I've had 4 sets of muffles on my car and the quads sound deeper and yeah all the hate comes from the high price,
You have sound clips?
Black 2014 Mustang GT Base
MRT Boss H Pipe, QTP(with wireless), KOOKS Side Pipe, W/O Resonators, FRS QUADS, Pro-Cal Tune
GT500 Valence, MMD Window Pannels Kenwood Excelon DDX9903S
2 Alpine PDX-V9
2 Alpine SBR-S8
Morel Elate 6.5"