Installed in seconds. Works perfectly in all modes.

 

too bad these wont work on cars with SGW...

 

Can you share more info on where you got it from and what's required to install please

 

TMC Motorsport based in N.Ireland. Literally plugs straight into the port under dashboard. I believe Alfissimo in US also sells the same product.

 

Thank you. Its that easy and works in normal modes?

 

Yes. Flaps can be always open in D, N or A. It can be activated by holding the button on front of gear selector for 2 seconds. The same if you want to close the valves (they will still open automatically if the car chooses to). It also remembers which setting it was in when you switch off ignition so your choice if you want start up with flaps closed or full anti-social mode

 

I just did the vacuum line mod so the exhaust flap is permanently open, I may be wrong but doesn't seem to pop/bang on gear changes as much like it did in Race mode prior to the mod.

Does Race mode change the timing of the engine to allow more pops and bangs?

 

I performed the valves open mod todayy - it works! Total cost $3.
I'll post up a complete write-up soon.

 

please please do...

 

I believed in the 2020 models, flap are open in “D” mode too.

 

Hello, just saw the discussion and I'd like to share my experience.
I bought some time ago a small device which connects to the OBD port and allows to open/close the vales any time.
In addition it allows you to display some additional info on the main instrument cluster (like Boost pressure, Brakes temperature, Gearbox and Diff oil temperature, 0-100 times). It allows as well a Launch Control function.
Well, the object is not super cheap, but is VERY nice and practical (there is no installation whatsoever as you just have to plug it in the ODB). It is produced by Squadra Tuning and its name is Performance Logger (as it is also logging some performance data )
Here below some pictures of the info you can display (taken directly form the instruction manual):

 

Hello, just saw the discussion and I'd like to share my experience.
I bought some time ago a small device which connects to the OBD port and allows to open/close the vales any time.
In addition it allows you to display some additional info on the main instrument cluster (like Boost pressure, Brakes temperature, Gearbox and Diff oil temperature, 0-100 times). It allows as well a Launch Control function.
Well, the object is not super cheap, but is VERY nice and practical (there is no installation whatsoever as you just have to plug it in the ODB). It is produced by Squadra Tuning and its name is Performance Logger (as it is also logging some performance data )
Here below some pictures of the info you can display (taken directly form the instruction manual) ...

Just thought I would add my $0.02 worth ... I am personally reluctant to install devices that interface with the car's ECU internal programming. I do not have reason to believe that this device may cause problems, but any device that requires interfacing to the car's ECU internal programming is subject to the version of the installed software. Should the manufacturer upgrade the software (and they do), there is a possibility that the device may no longer function. Or, at worse, may cause a problem with the car's operation. Should Alfa Romeo upgrade the software and this OBD device no longer functions (or functions incorrectly) there is no assurance from Alfa or the device manufacturer of getting a fix. Just saying.

Steve

 

Is there any noticeable performance losses or gains with the exhaust valves open all the time?

 

With the valves open all the time, there will be a slight reduction in overall back pressure within the exhaust system. This slight reduction in back pressure has some people believing that there will be a slight loss in engine torque that is produced at lower RPMs. For example, the amount of torque available when accelerating away from a traffic light. In practice, though, the reduction in back pressure will not affect the torque because the exhaust bypass valves are so far downstream in the exhaust system it will not affect the scavenging affect at the exhaust headers, therefore, any loss of torque would be infinitesimal. If want to read more, here is document that I wrote on the topic ...

http://www.forzacomponenti.com/documents/misc_docs/Exhaust%20Valve%20Bypass%20Controller%20Paper%20v2.pdf

Steve

 

No loss in power at all, the sound is absolutely amazing.

 

You don't need any of these expensive devices. I spent about 30mins and less than $5 and it works flawlessly.

 

.

 

I dont even have the radio figured out yet.
The squadra sounds cool but an idiot proof plastic valve is more my speed.

PS when the car starts in the cold its MUCH louder even with the flaps bypassed.
It mellows out after just a bit.
Whats going on here ?

 

many modern European cars (or at least the high performance ones…not sure of the rules there) have a cold start cycle When the cats are cold pollution is at its highest, so they inject air into the system to rapidly heat the cats. once the cats are heated due in large part to this, the idle sounds become normal. This lasts for around 20 seconds or so…. some cars do it even longer. This is common on many European cars.
With the flaps open, the difference is more pronounced. I have a miitek exhaust and have the flaps set to open always and the cold starts are very loud and gritty sounding. It’s actually not a nice sound in my opinion. but once the cycle stops it gets better..and quieter.

some aftermarket tunes disable it if desired. well, for some cars at least… not sure if there’s a tume that disables it on the alfa…but for cars like a bmw its easy to get something to disable it if desired.

 

Bought my AHM last week, will fit it this weekend and see what it's like

 

Thanks for this.

 

Any links to a DIY video?

 

I can offer OEM factory ECU flash for always opened exhaust flaps in Dynamic mode.

 

 

Question to those of you with the Forza. I've got the b3a (the model that only defaults to ecu default on start up) with remote that has only buttons A and B on it.

I searched on the Forza website and only found documentation for the b4a, and only for non turbo cars which has four buttons.

I believe A returns to ecu default valve operation and B opens the exhaust, but can someone please confirm for me?

Also does anyone know how to change the battery on the remote?

Tyvm

@forzasteve

 

Planning on doing the vacuum line mod first thing when I I get one 🤌

 

Get a squadra performance logger instead. Can control the exhaust flaps from inside the car as well as do performance logging, burnout mode, launch control, clear codes etc.

 

I like (and have) the Forza since it doesn't require a device in the obdii by your knees. But then the squadra offers more features