I have the 140400 Borla for the nonPZEV Hatch. I think it is somewhat loud, however not as loud in video compared to the FSWERKS and Magnaflow. It does not drone at HW speed, but around town it can get slightly (farty) because the damn DCT shifts to early and often. So in low a gear it can be loud, but my ears are really good. Also have full spare which could allow some resonance under the trunk area.
Think a layer of dynamat under the spare would cure that?
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