Originally Posted by M54ccibo
Thanks CPI. Is there any drone with it? Do you keep the valves open or closed when just rolling around? TIA.
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.