I've promised a number of people to eventually get some sound clips put up of the Invidia system I have on my coupe. So, here we are.
Instead of the vids that everyone else posts...camera on the ground while the car is started and then doing a flyby....we decided to do it a bit differently as you can already see those. Both video's utilize a GoPro with it mounted on the bumper for the exterior clip and being hand held for the interior clip.
Now, realize where the camera is and that it's not a professional microphone being used. The camera also has a wind shield on when attached to the bumper. For the exterior it seems pretty accurate. For the interior video it seems to enhance the low-end of the exhaust. Pay attention to the surrounding noises (blinkers, squeaks, etc) as it should allow you to judge better how loud it is. From my perspective it has a nice deep tone up until light cruising or keeping an average speed at which point you really don't notice it any more than the factory exhaust. Put you foot down and you hear the growl. Some slight tinnish rasp can be noticed from having HFC's but it's not annoying or harsh. Adds to the sound.
[youtube]http://www.youtube.com/watch?v=xfph0uvWqz4[/youtube]
[youtube]http://www.youtube.com/watch?v=6KTBECG9zf4[/youtube]
