Can you explain the science behind these claims? I have the full MTM system on my car, downpipes included, which has valves in the quad tailpipes just like the HMS system. The only difference between the MTM system and the HMS is that the MTM is 3" all the way through. Can you explain why you think the HMS system will cause the car to 'lose serious power'? Also, in reference to the droneing, all you have to do is close the valves and the noise levels should go back to almost OEM levels. There is a video on youtube that demonstrates this reasonably well, albeit on a static vehicle.
http://www.youtube.com/watch?v=gdavyVbbkKw
XS-POWER wrote:Having done a little digging i have found that these systems may not be all they are cracked up to be,
They sound amazing, But
a) Car looses serious power
b) Way to much Drone inside the car for every day driving
Most may be able to live with the Drone inside the car but the loss of power is not what every RS6 owner really wants
