So I've been looking/shopping (still) and have some thoughts.
PIECHA:
https://www.ebay.com/itm/JAGUAR-F-TY...-/292008323433
$5500 and if you look at the pictures on zoom, the upper half isn't carbon fiber. And really, $5500?
PARAMOUNT:
They have two. The $750 one I showed in a post above came from Aliexpress and is from China. The second one they say they developed with VIP for the Predator. I
do like that it has two vanes in the middle. So it's $2200.
https://www.paramount-performance.co...e-styling.html
ARDEN:
https://www.arden.de/shop/de/arden-h...or-carbon.html
German, sounds promising, but it's just a bolt on extra piece at the bottom. $1954 for a bolt on wing that looks just that. Bolted on.

I'm seeing the Paramount piece as being the best choice of these three. If it is being used by VIP on their project Jag, I'm hoping their standards are a little higher. But the other diffuser they offer is out (by my judgement- China sourced) and their carbon fiber grill and surround were found to be a bust by members here, I'm just still hesitant to go all in yet, I just wish someone here had one on their car or knows about one on someone else's to give me feedback. I really don't want to waste the time, effort and money for an unknown item

 

https://www.jaguarforums.com/forum/f...lights-209641/

Might want to check this thread out as well

 

Here is mine.
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Whose diffuser is that?

 

JC Sportline in China. I have to admit it looks good but I am not quite happy with it as there was fitment issue and the edges aren't aligned. Plus my car has reverse sensors and this didn't have.

 

And no back up lights

 

I have and sent him a PM asking about it and a source for this part. So far, no reply.

 

He may not be active here anymore. He sold his car and got an Aston Martin

 

Correct there isn't. The center light is being used as back up.

And you got to use a custom made muffler as the v8 muffler tips aren't extended wide enough to come out from both sides.