What is the cost to change spark plugs? Engine size is 2.5. on 2003 Jaguar X-Type

Engine is missing and never had a tune up.

Asked by for the 2003 Jaguar X-Type
Good Morning,
A set of platinum plugs installed $288
A set of iridium plugs installed $417
Misfiring of these engines is typically not caused by faulty plugs unless your mileage is excessive.
Ignition coils and vacuum leaks tend to be likely causes.

Rick Steel
Prestige Automotive