Guys I just got time to get the reviews of the 250 and 300 Black Widow muffler videos on YouTube. I have both inside and outside cabin sound clips of each muffler. The Cajun Titan with longtubes, Cajun resonated bpipes, Cajun catback and Ultraquiet resonator installed was the test truck. I cant imagine either of these mufflers without the Ultraquiet...lol. I also have videos on my website of the JBA and Borla mufflers.