Definitely an improvement over a stock muffler in both sound and performance. Very throaty and low pitch. Perfect for 35mph stock-like builds. I actually did add some baffles and packing in this one, but I may build a few more and play around with a few different baffle orientations.
Work on getting the belt as low as possible in front Vario, and as high as possible in the rear. so that you are starting in the lowest gear ratio possible. Every mm makes a noticeable difference in acceleration.
