This does make the exhaust sound a little quieter, the sound is still great but not as angry as it is without. Once you look at it it doesn’t seem much for the price but as it’s a genuine Akrapovic piece it does feel quality, I can’t compare it to the other manufacturer parts out there that do the same job as I’ve never touched one but as I’d bought and Akrapovic exhaust I thought it’d only be right to invest in the authentic dB killer, I would definitely recommend it if you want to pacify the growl a bit.