I'm still unclear on this. I have a 2015 S, which has both the F15 and the F43
Both are listed in the manual as Active exhaust valve for F15 and simply Active exhaust for F43.

Which one should I remove to try this?

Thanks

 

F43. You have a vacuum pump, right? Annoyingly buzzy thing, though maybe that’s most noticeable in a convertible.

 

Yep, F43 on my MY2015 F-Type S so it should be the same for Paul c. In the fusebox under the floor panel in front of the passenger (LHS) seat on my RHD car.
No buzzing ever for me but that may be just a coupe vs 'vert thing.
I removed fuse F43 a few years ago and yes the exhaust sounded a little louder than when using Dynamic and/or the exhaust button, but it droned a bit on long uphill stretches of freeway so after a month or so I whacked the fuse back in.

 

Thank you Gentlemen, and yes, I do have the annoying vacuum pump. Actually, I was toying with the idea of getting rid of it as per the TECHNICAL BULLETIN
JTB00365NAS2.

I've attached it below for those who are not familiar with it.

 

I've always noticed dynamic mode is louder than normal mode with the active exhaust button pressed. I think the above link with a RF controlled fuse 15 could be a nice solution.

 

Fo rme, the best use of the active exhaust button is to quieten dymanic mode.