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I just removed the coil springs out of the active exhaust actuators on my scat pack. I watched a video that said the 2019's wont throw a cel. I used some springs from home depot to hold the butterfly's open and mounted the actuators back in place. When you plug the harness back in you can hear them move, I assume it's performing a test on the system. I only drove it a few miles afterward and no issues yet. I will put some miles on the car and keep an eye out for the check engine light. Also... is there a good way of jacking up the rear end? There are a lot of plastic covers underneath and only one small spot near a pinch weld with no plastic to get a jack underneath. My jack has a large pad, and I did not want to damage anything so I cut a piece of 2x4 to fit in the space. It was rather sketchy but worked. I will have to come up with a better solution sometime. My jack stand fit underneath the rear control arm with no problem. The car sounds great, and I can always put it back if I have any issues.
 

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I just removed the coil springs out of the active exhaust actuators on my scat pack. I watched a video that said the 2019's wont throw a cel. I used some springs from home depot to hold the butterfly's open and mounted the actuators back in place. When you plug the harness back in you can hear them move, I assume it's performing a test on the system. I only drove it a few miles afterward and no issues yet. I will put some miles on the car and keep an eye out for the check engine light. Also... is there a good way of jacking up the rear end? There are a lot of plastic covers underneath and only one small spot near a pinch weld with no plastic to get a jack underneath. My jack has a large pad, and I did not want to damage anything so I cut a piece of 2x4 to fit in the space. It was rather sketchy but worked. I will have to come up with a better solution sometime. My jack stand fit underneath the rear control arm with no problem. The car sounds great, and I can always put it back if I have any issues.
Hey Mopar650b-
Have you seen this....
MFER-1
 

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Guys what exactly does the active exhaust do?

I've seen it listed on many of the Dodge vehicle window stickers, while my wife and I were car shopping.
 

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Discussion Starter #4
Guys what exactly does the active exhaust do?

I've seen it listed on many of the Dodge vehicle window stickers, while my wife and I were car shopping.
It controls a butterfly valve inside the exhaust system. The valve has a small diameter hole in it so gasses and sound can still pass through when closed, but some will be blocked. The valve will be open on a cold start, but close once the car warms up. You can have the car idle and listen to it happen after a minute or so of the engine running.
 

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It controls a butterfly valve inside the exhaust system. The valve has a small diameter hole in it so gasses and sound can still pass through when closed, but some will be blocked. The valve will be open on a cold start, but close once the car warms up. You can have the car idle and listen to it happen after a minute or so of the engine running.
What's the purpose of the valve?
 

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What's the purpose of the valve?
Actually a pair of valves, one in each exhaust pipe. Quiets the exhaust sound when closed, roars nicely when open. Controlled by the engine computer. Sport mode makes it more "active" so the valves open under more conditions. Track mode even moreso tho I don't have that on my R/T.
 

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I just removed the coil springs out of the active exhaust actuators on my scat pack. I watched a video that said the 2019's wont throw a cel. I used some springs from home depot to hold the butterfly's open and mounted the actuators back in place. When you plug the harness back in you can hear them move, I assume it's performing a test on the system. I only drove it a few miles afterward and no issues yet. I will put some miles on the car and keep an eye out for the check engine light. Also... is there a good way of jacking up the rear end? There are a lot of plastic covers underneath and only one small spot near a pinch weld with no plastic to get a jack underneath. My jack has a large pad, and I did not want to damage anything so I cut a piece of 2x4 to fit in the space. It was rather sketchy but worked. I will have to come up with a better solution sometime. My jack stand fit underneath the rear control arm with no problem. The car sounds great, and I can always put it back if I have any issues.
Any CEL after a few months? I wanna try this on my Charger. Also interested in what type of springs you used to keep the valves open.
 

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Discussion Starter #10
Any CEL after a few months? I wanna try this on my Charger. Also interested in what type of springs you used to keep the valves open.
No CEL! Car has been flawless! I just bought a pack of small springs from Home Depot. Pretty thin and maybe 4 inches long. Then just hooked them into the butterfly and I think I hooked the other end up where the actuators mount. I will probably have to replace them eventually when they rust.
 

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2016 Dodge Challenger R/T Plus in Granite Crystal Metallic
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look at the MFER in one of the previous posts. kit has everything you need to keep them open.
 

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No CEL! Car has been flawless! I just bought a pack of small springs from Home Depot. Pretty thin and maybe 4 inches long. Then just hooked them into the butterfly and I think I hooked the other end up where the actuators mount. I will probably have to replace them eventually when they rust.
I took the springs out and used a lock pin to lock the valve open, bolted the actuator back up and plugged it in. Couple miles and I got CEL. Not sure why. It's a 2019 Charger. I'll double check my work in a minute
 

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I know this thread is a few months old now, so hopefully a few more 2019 or 2020 owners have tried the active exhaust delete without using one of the delete kits as explained by the OP above.
Does this work on 2019 392 and newer just removing the spring and locking the valve open or do you still get a CEL code?
 

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Discussion Starter #15
I know this thread is a few months old now, so hopefully a few more 2019 or 2020 owners have tried the active exhaust delete without using one of the delete kits as explained by the OP above.
Does this work on 2019 392 and newer just removing the spring and locking the valve open or do you still get a CEL code?
Nope no problems or cel after 4700 miles!
 

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Thanks I plan to follow suite with mine and test it out. If nothing else it will make for an interesting experiment. Thanks again for the reply and I will the thread posted on my findings.
 

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Almost forgot to ask did you try removing the valve motors completely or just unplugging them to see what happens?
 

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