Any vintage Jag owner will tell you that Jags can overheat in any climate! Here, in Canada, Chris runs the Size Long on his XJ-S (look closely to see them, as they match the car and blend right in!).
He says: “Real happy with the louvers. The heat that escapes is amazing. Letting the heat out saves on all the wiring sitting on a hot motor like the V12. They work wonderful and they should be stock on every XJS. My Jag SJS is happy! Thanks again for a great set of Louvers! Cheers.
— Chris K., British Columbia, Canada