Try any Jaguar parts web site and search for front springs. There will be a number of different ones and I doubt Jaguar will identify all the differences but at least you could start with that?
You did not post what model XJ you have and if you read the rest of thread a number differences have been posted depending on which car you have?
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I have a 3.0 diesel. I have tried a lot of the jaguar parts sites with no luck unfotunately.

 

Pretty simple to find and yes there are a number of different part numbers too?
Try C2D32158. This one is for a 2014 XJR which is my car

Here is one of many Jaguar on-line parts dealers. I put my car info in and searched for front springs. Got a list of springs.
Jaguar Parts
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Yes I can find the part number of the 5 litre bag mom supercharged model (C2D11402)
But cannot confirm that this is the same as the 3 litre diesel. I would assume its not.

 

this might be a long shot but I have developed a


set of lowering springs for the x351 XJ and are currently being sold across the UK & the US.

 

Wow, very interesting. How do the air shocks in the rear respond?

 

I looked into a lowering kit for my 2018 xjr575 5.0 V8 but to no avail mess with those rear bags or damage them its thousands in parts but I'm sure you cluld adjust the ride height on the rear with a bit of reprogramming surely?

 

Very sharp car there.

 

thank you, well worth trying to get your hands on one the only way I can describe it is a car you have to drive yo be on top of yes it'd got more toys than an average house but a standard one is knocking out 568 bhp and a real world 0-60 of 3.9 from the rear wheels which is phenomenal in its self this one has had the pulley upgrade spires exhausts and a pair of k and n filters to boot might be looking at a re map at some point it's currently sitting at just over 600 bhp but the remap plus what's been done and a few tweeks possibly a pair of 200cell cats 660 ish wouldn't be un realistic, I've also been told that if I were to add a turbo to the supercharger then we are looking at well over a thousand bhp even as it is its a 50mph 1st gear.....the portfolio V8 is just as good if one of these isn't available as they are really quite rare I'm lead to believe with only 104 units in Europe and only a handful in the uk


She looks real nice when clean.....

 

Adding a turbo in addition to the supercharger?? Now I'd like to see someone tackle that

 

I've seen it done many times but the question is would you want to, the xjr575 is going up in value but adding all that kit while unique would kill the value off so you sometimes as nice as it would be to twin charge and give it the ability to almost make a bread knot out of its self with all the torque it would likely have you got to balance it out and think if the next perso coming to buy this car wants it but wants to turn it standard again thay would be too much for a lot of people and put them right off it..... not only that it's hitting 3.7 to 3.8 seconds 0-60 for an 1800kg saloon with over 200mph under its bonnet its pretty impressive the way it pulls in 1st you don't even have time to react before it's at the top of the gear Insane dosent even come close lol

 

Hi

Please send me a direct message if you are still interested in lowering your 575.

all the thread replies are just confusing to read

 

My next XJ (non/limo)