Myshelby3425
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I believe someone posted on here how to enable it. Reason why there isn’t many running is bc of the availability of the harness.
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2018 Active Exhaust Install Guide
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JCFoster
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Maybe this has been talked about, but couldn’t find it. With the active exhaust mufflers, is the open side
baffled at all or just straight pipes through the muffler? If so, what would be any different than having cutouts prior to the mufflers as far as sound goes?
baffled at all or just straight pipes through the muffler? If so, what would be any different than having cutouts prior to the mufflers as far as sound goes?
jacknifetoaswan
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I don't think anyone has opened one of these up, so I can't say for sure, but when mine was on the rack getting the mufflers installed, I could see that the outer (always open) exits had what looked like a perforated fiber lining that would damp the sound. When looking into the center (valved) exits, all I saw was pipe. That doesn't mean that there isn't a resonating chamber inside the muffler that alters the sound/volume, which is pretty likely.
Having heard what exhaust cutouts sound like on the Coyote, the active mufflers don't sound anything like it, even with the butterflies fully open. It's super smooth, and you get some popping and cracking on downshifts when the butterflies are open, but the tone is way better than any other set of mufflers I've heard on the Coyote.
JR
jacknifetoaswan
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For anyone waiting on ordering the pigtails that connect to the motors (JR3Z-14A411-H), they were nationally backordered until 2-AUG, but I just received a shipment notification from Levittown Ford that they've shipped. Once I get them, I'll verify that they're the correct pigtail to connect the mid-harness to the motors.
JR
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They are straight through but resonated. They will be quieter but deeper sounding then a straight pipe through.
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FISHTAIL
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Yeah, although I'm working on the work around for that. Mine is one of the "don't haves" even though it's a premium 401a car. Not sure what dictates if you get the pre-wired harness or not, but it's obviously some option set. Maybe the premium stereo, or magride, or a vert...who knows.
Anyway, the PCM pins for this are known, and the back of the harness is pretty easy to access. So...in theory you just need to run 4 wires from the PCM to the actuators for control, plus switched 12v power and ground, and a forscan mod to get this setup working if you are lacking the pre-wire like I am. Once I have all the info and parts in hand, I'll take a crack at this with a writeup so folks with an 18, but no pre-wire, can add this system.
I'm pretty happy with my solo setup, but now that I see what should be involved in adding this I want to do it just for the hell of it.
FISHTAIL
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So a bit of an update. I've been digging through my car a bit, and while it is NOT pre-wired back to the trunk, it does look like the wires are in the PCM already. So the connection terminates somewhere south of the PCM. Given the diagram that was posted in this thread earlier, it looks like there are a few junctions along the way where that could happen. I need to walk back along the harness and find where the wires terminate, and that's where I'll tie in.
I'll post up once I verify with 100% certainty that the wires I'm tracking out of the PCM are the correct ones, and let folks know where they can pick them up. I have not checked the power circuit yet, but I'm less worried about switched 12V power right now, as that's the easy problem.
I'll post up once I verify with 100% certainty that the wires I'm tracking out of the PCM are the correct ones, and let folks know where they can pick them up. I have not checked the power circuit yet, but I'm less worried about switched 12V power right now, as that's the easy problem.
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jacknifetoaswan
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Get in touch with Sam (breeves002). He sold me the DC-DC buck converter I'm using, and could probably set you up with a complete solution, if you were willing to spend a couple bucks.
Honestly, wiring it up isn't that bad. My harness is ready to go into the car, just waiting on the pigtails to connect directly to the actuators, which will be here tomorrow.
JR
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FISHTAIL
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Not yet. I have a friend who's a tech at a ford dealership with access to the wiring diagrams, and he's supposed to be getting me all the connection locations. He hasn't had time to get it all together yet, but once he does I'll start checking them to see where the wires terminate. As soon as I have that info, I'll post up.
