Exhaust Options Index

[AlSalas131]

Anyone tried removing the #15 fuse in the frunk, exhaust actuator to keep valves opened or prevent from closing to see if it triggers a warning ?
I have a G87 M2 and decided to change the front and mid pipe with removal of the second cats but stayed with the factory exhaust and after driving in sport mode with the valves opened removed the fuse. Now the valves are opened all the time instead of getting the miltek valve controller.

 

[Julian73]

Even if you figure 3 hours at $250, you’re still well under $1,000.

Looking at installation instructions, there just ain’t that much to changing the exhaust. What’s more, it’s not like there’s a bunch of one time use expensive fasteners and gaskets that are needed.

I guess if you can get someone to pull the trigger, ok, but that seems like a stupid way to do business.

$2700 for installation is rape, however if the exhaust swap included a Tip change then the hours do build up as the rear bumper must be removed.

 

[Julian73]

Has anyone had first hand experience with the GRP titanium exhaust? Curious on the sound it makes, especially with the decay and the controller installed. Videos unfortunately don’t do it justice

I've had the GRP Ti rear muffler on for over 1000 miles, while I cant compare it to a standard exhaust Emira as the dealer installed it along with Miltek valve controller, I can compare it to an older Evora fitted with header, mid cat and factory Ti exhaust. The Emira has more drone, while the Evora set up is more shrill.

 

[Time2Fly]

@Speedy Emira I swapped the y pipe not for power or sound but weight. My exhaust is titanium from the cats back. The stock y is more than three times heavier.

 

[Eagle7]

@Speedy Emira I swapped the y pipe not for power or sound but weight. My exhaust is titanium from the cats back. The stock y is more than three times heavier.

Who has a titanium Y pipe?

 

[Hell4Leather]

Anyone tried removing the #15 fuse in the frunk, exhaust actuator to keep valves opened or prevent from closing to see if it triggers a warning ?
I have a G87 M2 and decided to change the front and mid pipe with removal of the second cats but stayed with the factory exhaust and after driving in sport mode with the valves opened removed the fuse. Now the valves are opened all the time instead of getting the miltek valve controller.

How would you get the valves to be fully open when you remove the fuse?

 

[Time2Fly]

@Eagle7 @Aerie does. It's listed in the items at the top of this thread.

 

[kitkat]

Anyone tried removing the #15 fuse in the frunk, exhaust actuator to keep valves opened or prevent from closing to see if it triggers a warning ?
I have a G87 M2 and decided to change the front and mid pipe with removal of the second cats but stayed with the factory exhaust and after driving in sport mode with the valves opened removed the fuse. Now the valves are opened all the time instead of getting the miltek valve controller.

I have a feeling the car would enter a limp mode. We’ve seen multiple reports that even the valve being oriented incorrectly causes values to be reported back and the ECU goes into limp. I’ve got to imagine a completely disconnected/unpowered valve does the same.

 

[Dragoon]

Below are links to my exhaust videos.

 

[cyanmauve]

@Eagle7 @Aerie does. It's listed in the items at the top of this thread.View attachment 53482

Sure looks purrty.

 

[AlSalas131]

How would you get the valves to be fully open when you remove the fuse?

In my M2 I removed the fuse out after I parked from driving in sport mode with the valves opened. After removing the fuse the valves can not be closed.

 

[Eagle7]

@Eagle7 @Aerie does. It's listed in the items at the top of this thread.View attachment 53482

I looked at their website and I only see the stainless steel one.

 

[Time2Fly]

@Eagle7 I just contacted them and bought one.

 

[crashprash]

I looked at their website and I only see the stainless steel one.

Their website isn't up to date at all. Whatsapp them and they have a lot more stuff available. Better prices too

 

[crashprash]

@Eagle7 @Aerie does. It's listed in the items at the top of this thread.View attachment 53482

How much lighter is this vs OEM? I was considering this but due to the extra cost went with SS and heat shielding version

 

[Time2Fly]

@crashprash I'll reweigh the stock one when I get home as I can't find the photo.

 

[Eagle7]

@Eagle7 I just contacted them and bought one.

How much if you don't mind saying?

 

[Dragoon]

My stock exhaust weighed 29 lbs 15 ounces.

 

[Pixelated]

Questions for the pros cause I have no idea what I’m doing. I’m trying to find an alternative from GRP decat. So the first mod I want to do is the Milltek Valve Control cause I can open the valve 100% at all times. But what reliable alternative can I do to make it sound better?

What is the difference between the GRP Titanium exhaust and the Milltek exhaust? I’m assuming that they also work with the valve control?

 

[kitkat]

Questions for the pros cause I have no idea what I’m doing. I’m trying to find an alternative from GRP decat. So the first mod I want to do is the Milltek Valve Control cause I can open the valve 100% at all times. But what reliable alternative can I do to make it sound better?

What is the difference between the GRP Titanium exhaust and the Milltek exhaust? I’m assuming that they also work with the valve control?

I think the valve controller is going to get you a lot of the sound you’re looking for, just do that and then decide if you want to go further.