Teh valves are to help the car pass noise levels when stationary. When you put the loud pedal down these open and give the full effect of the exhaust. IF you keep the valves open you have sports sound all the timeforgive my ignorance but what will that do removing them?
Are the valves software operated? Really? I thought is was pressure-operated.I read on another forum that these Valves (RS4 Application) don't always stay open even if you use Full Throttle and removing them has really improved performance. Apparently the Valves are operated by the ECU and only fully open up in 4th, 5th & 6th!! You can get an ECU re-map for the RS4which opens the Valves 100% in every gear.
I'll be disconnecting these babies as soon as I get my R8 and will report back with findings.
There is no risk of damage, its only an exhaust. What is really surprising about the RS4, is that with them disconnected (i.e. valves remain fully open at all times) the car drives much more smoothly and progressively, gives better MPG and doesn't sound much louder (certainly from within the cabin). It just sounds more characterful and fun.Dunno if the RS4 is the same set-up but look here http://www.rs246.com/index.php?name...start=45&sid=2c329701294c6ac9ba1732faa97173bb
I felt that way about my 360, with them disconnectedThat's what's really daft about it, with valves disconnected it feels a much better all-round car - with no downsides whatsoever.
Very intresting , Better sound , more power better MPG , can this be the case ?