F Type switchable exhaust

F Type switchable exhaust

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EK993

1,925 posts

251 months

Sunday 13th March 2016
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OP - if you aren't concerned about putting the car into "quiet" mode, you can also pull the fuse for the active exhaust on a car that doesn't have the cabin switch - this will leave the valves open permanently.

JetskiJezz

662 posts

136 months

Sunday 13th March 2016
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EK993 said:
OP - if you aren't concerned about putting the car into "quiet" mode, you can also pull the fuse for the active exhaust on a car that doesn't have the cabin switch - this will leave the valves open permanently.
This is very much of interest to me, you can do exactly the same with the Aston martin vantage v8, simply unplug fuse 22 and the exhaust stays open. I found a guy on eBay who was manufacturing a remote switch which essentially was a device that plugs into the fuse board the receives a remote signal from a key fob. You then simply press the unlock button to open the exhaust and the lock button to put it into its standard location. Does anyone know if this same system might be available for the Jaguar, and has anyone got any advice as to the fuse that needs to be removed and how you go about it?

Am I right in saying that this only works for the active exhaust and not the standard basic exhaust on the 2013 non "S" cars.

Also does anyone know if there is a way of checking the specification for a car if you have the chassis number? I've done this multiple times with BMW purchases and it's really easy to find out exactly what was fitted to the car as far as options go.

EK993

1,925 posts

251 months

Monday 14th March 2016
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JetskiJezz said:
This is very much of interest to me, you can do exactly the same with the Aston martin vantage v8, simply unplug fuse 22 and the exhaust stays open. I found a guy on eBay who was manufacturing a remote switch which essentially was a device that plugs into the fuse board the receives a remote signal from a key fob. You then simply press the unlock button to open the exhaust and the lock button to put it into its standard location. Does anyone know if this same system might be available for the Jaguar, and has anyone got any advice as to the fuse that needs to be removed and how you go about it?

Am I right in saying that this only works for the active exhaust and not the standard basic exhaust on the 2013 non "S" cars.

Also does anyone know if there is a way of checking the specification for a car if you have the chassis number? I've done this multiple times with BMW purchases and it's really easy to find out exactly what was fitted to the car as far as options go.
The owners manual identifies the fuse for the active exhaust - just go into the fuse box and pull it.

It will only work on an active exhaust equipped car - as obviously a non active exhaust car has no valves to open / close therefore there wouldn't be a fuse to control it.

JetskiJezz

662 posts

136 months

Wednesday 16th March 2016
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EK993 said:
The owners manual identifies the fuse for the active exhaust - just go into the fuse box and pull it.

It will only work on an active exhaust equipped car - as obviously a non active exhaust car has no valves to open / close therefore there wouldn't be a fuse to control it.
Thank you very much, that really is interesting.
The remote switch that I have installed on the Aston essentially plugs into the fuse location and replaces the fuse to basically switch it on and off, so in theory you can easily retrofit the switch to the active exhaust by the sounds of things.

GTD40

1,670 posts

181 months

Sunday 20th March 2016
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Right , having done a lot of research, including speaking to dealers, central Jag and then a bit of inside knowledge in Jag this is my understanding re retrofit of exhaust switch (to V6S or V8S) :-

- Jag will exclude parts of loom for switch for exhaust if not specified as part of order
- to retrofit means a large amount of work to strip car back to loom
- no dealer has come back to me with a quote (since original £400'ish quote) ...get the feeling they don't want to do it
- with switch activated , software injects extra fuel on over runs to create pops, bangs etc .
- can't see how pulling fuse can accommodate last point
- some dealers are getting picky buying cars that haven't got switch.

Overall too much hassle for me, so bought a car with switch in place smile

Note the above is my understanding, so please do your own research to confirm.

EK993

1,925 posts

251 months

Monday 21st March 2016
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GTD40 said:
Right , having done a lot of research, including speaking to dealers, central Jag and then a bit of inside knowledge in Jag this is my understanding re retrofit of exhaust switch (to V6S or V8S) :-

- Jag will exclude parts of loom for switch for exhaust if not specified as part of order
- to retrofit means a large amount of work to strip car back to loom
- no dealer has come back to me with a quote (since original £400'ish quote) ...get the feeling they don't want to do it
- with switch activated , software injects extra fuel on over runs to create pops, bangs etc .
- can't see how pulling fuse can accommodate last point
- some dealers are getting picky buying cars that haven't got switch.

Overall too much hassle for me, so bought a car with switch in place smile

Note the above is my understanding, so please do your own research to confirm.
Pulling the fuse has exactly the same effect as activating the cabin switch - I know because I tried it to see what would happen.

Hawker789

10 posts

134 months

Monday 4th April 2016
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EK993 said:
Pulling the fuse has exactly the same effect as activating the cabin switch - I know because I tried it to see what would happen.
Yep, I pulled the fused a couple of months back and it sounds so much better. A little droney on long journeys but easy enough to put it back in. It sounds much better for general driving IMHO

GarethR

41 posts

137 months

Friday 15th April 2016
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JetskiJezz said:
Sorry guys, just repeat my previous question. Is anyone have a retro fit switch as noted above - I would love to know a bit more about exact costs and how this would work, so if anyone could shed any light onto this I would be really grateful.
I did it myself for about £2.50!!

If your car has the ACTIVE exhaust (check for valves on the rear silencer) but no switch on the console, then all you need to do is tag into the fuse under the bonnet that powers the solenoid. Wire to your own switch (I fitted a rocker switch under the dash on drivers side) Fit an inline fuse.

Hey presto, works a treat, and its even better than factory because it does not default to valves closed each time you start up!

I could not believe how simple it was!

I will post the fuse number when I get chance to have a look.

9xxNick

928 posts

214 months

Thursday 1st September 2016
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Is the "growl" on startup produced with the valve closed, or does it automatically open the valve for a couple of seconds to produce that effect?

ftypical

457 posts

118 months

Tuesday 6th September 2016
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Well, I would note that it does this on cars without the active exhaust. So, if it doesn't do it on cars with the active exhaust - it's a design feature.

supercommuter

2,169 posts

102 months

Thursday 5th December 2019
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GarethR said:
JetskiJezz said:
Sorry guys, just repeat my previous question. Is anyone have a retro fit switch as noted above - I would love to know a bit more about exact costs and how this would work, so if anyone could shed any light onto this I would be really grateful.
I did it myself for about £2.50!!

If your car has the ACTIVE exhaust (check for valves on the rear silencer) but no switch on the console, then all you need to do is tag into the fuse under the bonnet that powers the solenoid. Wire to your own switch (I fitted a rocker switch under the dash on drivers side) Fit an inline fuse.

Hey presto, works a treat, and its even better than factory because it does not default to valves closed each time you start up!

I could not believe how simple it was!

I will post the fuse number when I get chance to have a look.
thread Resurrection here...do you have details for this switch?

I can just pull the fuse but id like the option to open and close it

alexmorrissey0

4 posts

52 months

Tuesday 17th December 2019
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Hi guys have a p300 with active exhaust with button in the cabin.

Doesn't pulling the fuse put the car into limp mode ?

supercommuter

2,169 posts

102 months

Thursday 19th December 2019
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alexmorrissey0 said:
Hi guys have a p300 with active exhaust with button in the cabin.

Doesn't pulling the fuse put the car into limp mode ?
running with no fuse in 43 it runs fine. It is a 2016 model tho

alexmorrissey0

4 posts

52 months

Wednesday 1st January 2020
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Can i pull the fuse if i have the active button in cabin?
And do i pull it when cars off or on & after ‘opening the valve’

EK993

1,925 posts

251 months

Thursday 2nd January 2020
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alexmorrissey0 said:
Can i pull the fuse if i have the active button in cabin?
And do i pull it when cars off or on & after ‘opening the valve’
Why would you want to pull the fuse when you have the switch in the cabin?

alexmorrissey0

4 posts

52 months

Thursday 2nd January 2020
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Because its the active exhaust. So even when ‘open’ it closed below 3000revs then gradually opens as you get higher... so not fully open all the time

jagfan2

391 posts

177 months

Thursday 9th January 2020
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alexmorrissey0 said:
Because its the active exhaust. So even when ‘open’ it closed below 3000revs then gradually opens as you get higher... so not fully open all the time
There are technical reasons its not open all the time on the P300, the 4cyl is more back pressure sensitive than the V6S, so opening below 3000rpm actually hurts lag and throttle response, and from memory there are likely boom issues in that region too. Believe the latest Rdynamic models are now switchable though

supercommuter

2,169 posts

102 months

Friday 10th January 2020
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even with the fuse pulled it still gets louder at 3000 rpm on the 2016 v6s