When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.
The vacuum pump is what I read. Not sure. i was surprised it is not fail closed. I assume you have noticed that the engine is louder when first starting.
I want this device but, have not bought it as yet.
Corvettes do this also, new ones. Their kits are really cheap.
The vacuum pump is what I read. Not sure. i was surprised it is not fail closed. I assume you have noticed that the engine is louder when first starting.
Yes- what I find interesting is that it always starts up loud, then quiets down after a moment even if the car is in Dynamic mode and the exhaust switch is set to open.
Maybe this kit would allow it to be fully open even when idling?
Might be worth buying to test, but I would rather hear from someone who has it installed
My wife's BMW 650i does the same thing, but has no switch to keep the exhaust open. I would love to make the mod to hers. Wouldn't sound nearly as good as the Jag's V8, but BMW's 4.4 litre twin turbo is a great motor (but too quiet).
The vacuum pump is what I read. Not sure. i was surprised it is not fail closed. I assume you have noticed that the engine is louder when first starting.
I want this device but, have not bought it as yet.
Corvettes do this also, new ones. Their kits are really cheap.
The vacuum pump was only installed on the 2014 and maybe the 2015 model year. In 16, they eliminated the vacuum pump and hooked the valves up to the the engine vacuum. Many of the early vacuum pumps would buzz quite loudly and the TSB for that was to simply remove the pump and connect the valves to a vacuum tube on the engine.
The vacuum pump was only installed on the 2014 and maybe the 2025 model year. In 16, they eliminated the vacuum pump and hooked the valves up to the the engine vacuum. Many of the early vacuum pumps would buzz quite loudly and the TSB for that was to simply remove the pump and connect the valves to a vacuum tube on the engine.
That makes more sense to me, but would make this kit unworkable...
A quick reply from the vendor:
Clive Chedzey <clive.chedzey@ntlworld.com>
To:'Jay Dinnison'
Feb 3 at 2:53 PM
Hi Jay,
Many thanks for your inquiry,
My switch controls the vacuum powered exhaust valves through the cars network (CAN) it opens the valves at all times when the “loud “ button on the Keyfob has been pressed.
This will give a little more crackle on the overrun too as it negates the JLR “half operated” position which creates a delay in releasing to the open position on overrun / throttle blips.
Just check that you have the valves in place, as per the photos on my www.cccharger.co.uk site and this will then work for you.
Unfortunately, I can not confirm how much change it will actually make on a F-Type with the active exhaust button already fitted as I have never fitted it to a car with the switch in place.
Hope this detail assists,
On the BMW, it works in an entirely different way (electronic servo)and has a risk of intermittently throwing a fault code if the sequence of operation changes.
Today I disconnected the #15 fuse, active exhaust, on my 2018 2.0 f type. My fuse box locations are different than earlier cars. No #43. No fuse box in the car. Yes, I have the active exhaust. Works well.
The car went into limp mode.
so, I suppose these mods will no longer work easily on my car. I suspect the vacuum switch instead of the vacuum pump.
I guess I am just not going to have a loud button., The car was a deal anyway.
Looks like a great device, but the photo only shows electrical connections, no vacuum lines. I am not sure how this works on our valved system
Yes, I have it on my 2014 V8S. Only challenge I had is I had to connect the ground wire to a solid location, as connecting per the instructions wasn’t working. Remove fuse, insert wires, done. The remote allows the circuit to either be powered, or not.
Yes, I have it on my 2014 V8S. Only challenge I had is I had to connect the ground wire to a solid location, as connecting per the instructions wasn’t working. Remove fuse, insert wires, done. The remote allows the circuit to either be powered, or not.
Jeff-
So did you originally have a switch on your console to change the exhaust note, or did you add this device to allow for a switchable exhaust?
If you did have a switch, could you describe the changes this device made, as compared to the OEM exhaust switch?
Thanks,
Jay
I have the full active exhaust option. I pulled Fuse 43 and haven't felt the need for anything else. Removing Fuse 43 kills the pump so the valves are full open no matter what. As it should be. I'm not sure why you'd want to switch it to quiet, so I don't see a need for this device. And if you did, any switch would be easy to wire in.
Last edited by JIMLIGHTA; Feb 4, 2019 at 10:16 PM.
Jeff-
So did you originally have a switch on your console to change the exhaust note, or did you add this device to allow for a switchable exhaust?
If you did have a switch, could you describe the changes this device made, as compared to the OEM exhaust switch?
Thanks,
Jay
Jay, my car did not have the console switch. I added this device so I could have the switchable exhaust. I normally leave the exhaust open all the time, except the few times when I want it to go in quiet mode (a courtesy to certain passengers).
If I wasn’t worried about passengers, I’d have simply pulled the fuse and been done with it.
The VAP valves have a stronger spring than OEM valves and require more vacuum to keep them closed. I now keep the switch in quiet mode and the valves will open automatically at anything more than half throttle in addition to always being open over 4000rpm ( OEM programming).
>>Electric Exhaust Controller- anyone install this?
