RES The tail section valve of the new Jaguar XF 2.0T Tail section valve in Jaguar f-pace 3.0T Jaguar titanium alloy valve The 18 Jaguar XFL 2.0T is modified to RES mid tail intelligent variable valve exhaust. Tail section valve in Jaguar F-TYPE 3.0T The new Jaguar XF 2.0T Jaguar XE 2.0T Jaguar F-TYPE