24/12/2025
Some new Jag V12 related developments available from next year:
Equal length 3-2-1 extractor manifolds.
These work in the same manner as the well known twin extractor pipes.
The issue with those is the use of the factory manifolds.
They don't flow that great, and because of their build style only 2 cylinders per bank can have the right tuned length.
This design tackles those issues,
and fits all XJS V12 models, L- and RHD without any modifications whatsoever.
The secondary pipes end in a slip-fit collector, making the tuned length relatively easy to adjust if the need rises.
For those who find that too civil, I've got you covered too:
Full length 3-2-1 headers that fit the XJS chassis without structural modifications.
Will be built in left and righthand drive version.
More details to come.
The first set of long tube headers will be built for a British customer early next year, stay tuned.
