[Kinleyg]

I have had the Dahler valve controller for 6 months. It's worth every penny. Works perfectly through the fun Canadian winter. The biggest difference is with valves open in comfort. But there's a nice sound improvement in sport plus.

It's still tame but sounds good when you code out the fake exhaust noise.

[mike@x-ph.com]

Originally Posted by Kinleyg

I have had the Dahler valve controller for 6 months. It's worth every penny. Works perfectly through the fun Canadian winter. The biggest difference is with valves open in comfort. But there's a nice sound improvement in sport plus.

It's still tame but sounds good when you code out the fake exhaust noise.

[fanofbmwe46]

Originally Posted by 31shifter

Curious, any dyno runs with valves artificially open at lower rpm? I thought the other benefit of the valves being closed or partially closed at lower RPM was to increase torque / HP down low.

Anyone have an idea on this?

[M4Lou]

Originally Posted by 31shifter

Curious, any dyno runs with valves artificially open at lower rpm? I thought the other benefit of the valves being closed or partially closed at lower RPM was to increase torque / HP down low.

https://www.bmw-m.com/en/topics/maga...otorsound.html

This is a decent read (not really the video). The read states that at high enough RPM/engine speed - the stock valves will open up all the way. Now, the old argument of having more torque w/ more backpressure. Well, no clue.

[GoldfishTX]

I would guess the turbo provides more than enough back pressure for the engine. There are also two cats. My guess is that the valve manipulation is more about sound, either compliance or control.

[Autoaddict]

I have a mid pipe and I had the SST valve controller installed today and with it 100% or even 50% open, this thing is loud! Has way too much drone for me, honestly.

[Steveo]

Originally Posted by Autoaddict

I have a mid pipe and I had the SST valve controller installed today and with it 100% or even 50% open, this thing is loud! Has way too much drone for me, honestly.

Have you disabled the fake sound ASD?
This makes drone itself with it on.

[Info@mad-us.com]

Originally Posted by Autoaddict

I have a mid pipe and I had the SST valve controller installed today and with it 100% or even 50% open, this thing is loud! Has way too much drone for me, honestly.

You are getting drone with just a midpipe and valve controller ?

[1209582]

Originally Posted by Autoaddict

I have a mid pipe and I had the SST valve controller installed today and with it 100% or even 50% open, this thing is loud! Has way too much drone for me, honestly.

if u turn off the exhaust button and hit b or c on the sst remote, it is dead quiet

[Autoaddict]

So the ASD is disabled. I’ll have to drive around with the 100% and 50% open and depress the exhaust button to see how it sounds. Dumb question, what does the exhaust button next to the shifter do?

[chris3g]

Originally Posted by Autoaddict

So the ASD is disabled. I’ll have to drive around with the 100% and 50% open and depress the exhaust button to see how it sounds. Dumb question, what does the exhaust button next to the shifter do?

With asd disabled and the sst in a, b, or d modes the button in the car will just turn burbles on and off. With the sst in c mode it will enable opening of the valves per oem control based on engine setting and throttle amount.

[MagicF8x]

The IRL valve controller superb and has the option to go full open / full close or adjust the angle to your own liking.

[scuse_m3]

Originally Posted by Kinleyg

I have had the Dahler valve controller for 6 months. It's worth every penny. Works perfectly through the fun Canadian winter. The biggest difference is with valves open in comfort. But there's a nice sound improvement in sport plus.

It's still tame but sounds good when you code out the fake exhaust noise.

Fellow Canadian here - where did you order the Dahler controller from & what was your total cost in CAD?

[Kinleyg]

Originally Posted by scuse_m3

Fellow Canadian here - where did you order the Dahler controller from & what was your total cost in CAD?

I purchased it direct from Dahler. They shipped direct and it didn't take very long to get to Toronto. It definitely wasn't the cheapest option but I still swear by my choice. No issues with it at all.

[mike@x-ph.com]

We are expecting a shipment of Dahler soon so that future orders will ship within 24 hours from our warehouse in Las Vegas.

Until then all our orders are drop shipped either from the US distributor or Dahler directly.

[uhNexus]

Originally Posted by scuse_m3

Fellow Canadian here - where did you order the Dahler controller from & what was your total cost in CAD?

Probably $1,000 Canadian pesos.

[mike@x-ph.com]

Originally Posted by uhNexus

Probably $1,000 Canadian pesos.

its a lot cheaper from us even if you add shipping and customs

[ChrisM4]

Originally Posted by GarageMonsterM

Thanks for all the replies i am ordering the Dahler this week. On my car i notice when I come back into it from shopping il start it in Efficient, The engine software makes it get very loud as if the software is opening the valves partially on load then it goes away, this really bothers me and one of the main reasons i want to have full control. The software on these cars does some weird stuff with the engine idle and valves ive noticed.

What’s actually happening is that the wastegate in the turbo is opening fully to light off the catalytic converters faster. The valves at the rear of the exhaust won’t help that much unfortunately. (With the exhaust valves open it is even louder though)