That's because you have the stock mid pipe. The Violators are straight thru resonated cases, basically. You can't really get much louder than the Violators. The only louder is SLP Loudmouths, but that's only because they don't have the resonation, so the tone is terrible, IMO. Believe me. If you were to stick an off road H on there, you wouldn't be saying they were quiet, lol.