Jag. Series III XJ6, to be precise.
Great car. I had the 2002 XJ(8) Sport. Made in 02, 03 only. Sold it before moving to Asia. Your xj6 engine was just as fast if not faster. They did a great job on the 6.
Was trying to find two sites that a friend of mine used for both his jag and aston martin. One company in England, and maybe you are using it was a company with Performance as part of its name. After market on jags. They did some great work to the cars per the pictures. The other is a company in California. They use to send me catalogs all the time and for the life of me, I can’t think of it. Hate brain cramps.