let's talk headers.
 

So I am getting my header flanges waterjet cut, and I am getting the ice engine works mock up kit,

They will be 1.625 tubing

So should I do 6 into 2 into 1 like the traditional headers.

Or, 6 into 1 like aston Martin v12 headers are built like?

Any other suggestions or input would be wonderful

I truly have no idea!
Everything I have read and seen, says Jags system is good, never heard of headers helping.
For the life of me, cant remember where I saw it, but a shop in the UK has a kit that uses 2 balanced and tuned downpipes, plus the entire exhaust in ss if you want it.
They have a great site with info about such things.
Can anybody help, before Calvin sinks money in?

Have you considered this approach? Should look great with a set on the other side too.

Loooooooooooooooooool

2 sections means less chance of warping and it will be easier to remove and install

If we are going that route, this would be my preference:

Attachment 85720

I would be going down the path of what Lister did, I believe and even they said there is a lot of HP to be made out of the exhaust alone. The way I am thinking for mine is two banks of 3 connect cylinder 1-2-4 and 3-5-6 then like the original 2 to 1 and exit. I think room is going to be the issue here and the above sequence will most likely give you the closest to having all tubes the same length. I plan to nearly duplicate as much as I can the original setup but just have those tubes longer but coming to the same point under the car.

Calvin,

Feast your eyes on this gorgeous bundle of snakes

Attachment 85722
Attachment 85723
Attachment 85724

Those are Marko's headers. lol

Yep.
Captain of The Black Pearl.

is he on this forum?

Pure art!

Not that I know of. He's too busy building, modifying, driving, and racing The Pearl, to be on a forum writing about XJSes. lol

I'm going to make a setup that looks similar to that, and the lister setup.

We'll see how it comes out.

I was thinking about going for these , removing the exhaust as quickly as possible in these cars because of the restriction is key. The Ferrari headers are 44 primary tubes not sure about the other photo