I have the mbrp on my sedan and its quiet. The only time you hear it is at idle. The resonator is like 2 feet long almost lol.
I bought mine directly from mbrp. It took a while to ship since it came from canada.
And I did notice it doesn't fit quite right. One of the bends isn't tight enough so the hanger for the exhaust tip section doesn't fit quite right. Other than that its great. There customer service is awesome. I got a same day email contact within an hour of when I sent it out. Posted via FF Mobile