Does series 2 bimodal exhaust drone if open permanently?

[LastV8?]

The flap probably closes when it's not running. So it will be stuck in the closed position. Put the relay back in, whilst the igintion is off, and remove whilst idling.

I haven't pulled my relay (unless someone put in it wrong for me - looks exactly the same as 3rspecB's). The flap is always open in my car when stationary. Just checked to be sure (photo from a few weeks back). Maybe its always open cos it sounds fine?

 

[SSV 407]

426Cuda, you da man Thank you.

 

[ShinWow]

Flap should be fully open when the car is turned off. I've only ever removed the fuse while the car is off.

Squirted some lube up the pipe as you do... sorted.

Is that what the kids are calling it these days?

 

[426Cuda]

426Cuda, you da man Thank you.

Too easy mate. How's she sound?

 

[SSV 407]

She sounds awesome. No drone that I can notice either

 

[Adza75]

I haven't pulled my relay (unless someone put in it wrong for me - looks exactly the same as 3rspecB's). The flap is always open in my car when stationary. Just checked to be sure (photo from a few weeks back). Maybe its always open cos it sounds fine?View attachment 192205

The flap remains open whilst stationary and idling. It closes at certain points whilst driving, an reopens under acceleration. There must be some parameter that controls it, but I've yet to work out what that actually is.

 

[lmoengnr]

The flap remains open whilst stationary and idling. It closes at certain points whilst driving, an reopens under acceleration. There must be some parameter that controls it, but I've yet to work out what that actually is.

Its designed around the parameters of a 'Stationary/Drive By' noise test.
When the car is stationary, valves open during idle, then close when you free rev it to the RPM dictated by the noise test.
During the drive by test, the valves will be closed at the speed/RPM required for testing.

 

[SuckSqueezeBangBlow]

Lol, surely such a cunning stunt isn't legal? Well obviously it is for this car, but what if you could program that with an aftermarket ecu and exhaust?

 

[Adza75]

Lol, surely such a cunning stunt isn't legal? Well obviously it is for this car, but what if you could program that with an aftermarket ecu and exhaust?

I'm not sure how it could be illegal, when the car makes that sound with the bimodal open from factory anyway?

 

[zero_tolerance]

So are there any adverse effects to the car or warranty implications at all with having the relay out?
I pulled mine out not long after I got my car but put it back in when I took it to the dealer for the 1 month inspection. (just in case)
I just recently pulled it out again because I hate the way that the sound comes on in a sudden burst rather than being constant. Gives me the shits.