Helmholtz resonator ??? Not sure how effective they are... How was the video doctored? Not defending them, just curious about your reference material in that statement... More educated means better exhaust purchase...
https://vimeo.com/86796200
Here is the video.
At around 1:45 - 2:00 you can see that they barely gave the car juice to go around that bend when in earlier while showing stock they were WOT.
From there at 2:00 to 2:24 it is so blatantly obvious. Like, where are the road noises? Where are the sounds that our cars make while on the highway? You know the sound. It's practically not there. Hell, when he shifts you can't even hear the shifter let alone anything else.
And then again at 3:10-3:50. It's so blatantly obvious. Not only were they running a straight pipe, but they also did a CATLESS DP! How the hell is that thing not droning? If someone else on this forum were to buy it and give me an un edited video of the interior sound and exterior doing WOT which proved me wrong that would be great. If I can be proven wrong then I will take back everything I said and congratulate the company for making such an amazing product.
But until then I hold that they are more or less lying about how the exhaust really is.
i really wanted the exhaust when I heard the exterior rev the first time because I thought it sounded pretty beastly, but then the rest of the video ruined it.