Anybody familiar with RSC (reflective sound cancellation) when applied to an Evo's IX exhaust?



These systems are tuned to each individual car/engine/platform to cancel out the drone we hear on aftermarket systems. Similar to what is done on newer intake manifolds where a flap is opened to tune the flow of air and alter the velocity of the air at specific rpm range.

Anybody try one of these?

 

I see a restriction in flow, robbing power. I'd be interested to see the numbers. I put the dynomax muffler on mine and I love how quiet it is. The muffler does rattle a little leaving something to be desired.