Earlier last month we told you that German tuner Arden was working on a tuning kit for the Jaguar XF. Today the tuner released official details and two images of its latest project called the Jaguar XF AJ 21.
Adren offers power upgrades for all four engine variants of the XF starting from the 2.7 liter V6 diesel all the way up to the Supercharged 4.2 liter V8. Power for the top-of-the-line XF has been increased to 500-hp with a displacement increase to 4.5 liters.
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