Quote:
Originally Posted by SlingShot
In the American Thunder kit, they use the 40 series Classic two chamber .... They are a very aggressive sound. There is definitely a drone at low speeds 1200-1500 cruise. It's kinda hard to tell by a video, but the kit I have seems to be louder and a lower tone. My normal take off seems more like his hard take offs, but with more of a rumble. When cruising you can definitely feel the drone in your butt, but it's a good thing .....
If you don't like the loudness their 50 Series has more baffles in them for drone and harshness .... Kinda like the old Hush Thrush mufflers ...
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Yup I was waiting to post about the drone - I installed this kit a month ago and love the sound. I do have some drone in the 1800-1900 RPM range however. It seems to be wearing off a little bit as it breaks in. One thing I can confirm - the butt-dyno definitely shows a difference, even more so than when I installed the Airaid. The tips need to be rotated inwards a bit to blend with the contours of the rear valence, and thus the logo is askew but that's ok (unlike the Corsa). It's a great option for the price-point.