Originally Posted by cpiguy
I keep them open all the time except for when on a Bluetooth call on the freeway below 80 MPH. Why, because there is a drone below 2000rpm, I wish there wasn't, but there is. It's an exageration of the stock exhaust sound below 2000 rpm. Doesn't bother me much, but it's there. Hardly noticable with the valves closed, but still there.
Thanks for the info. Tomorrow I'll pay attention to speeds etc. around 2K. If its not bad with the valves closed, I say no biggie.