The JCW kit can be installed either at the factory or retro fitted.
I donīt understand why your dealer doesnīt recommend the kit to be fitted at the factory unless, of course, the dealer wants to make a higher profit out of the deal...?
WE don't actually fit 'works' kits at the Oxford plant, a dealer can do it, or John Cooper Garages, either way the car will have at least delivery mileage and hopefully some test mileage from whoever fitted the works kit.
In fact, I would almost say that having it from fresh would be better, as you bed in/run in all the new parts at the same time. John Cooper Works sell the cars from new, and so do most dealers. I've never heard a case where they advise you wait. No reason to do this at all.
M.Clive received his upgrade prior to delivery. Then 3 days later he went on his running in vacation. Drove from Kansas City east to the Mississippi River. Following "The Great River Road" at a relaxed pact into Illinois. Then across the state to Chicago. Saw the sites in Chicago then returned home via Interstate highways. Touched 110 mph on the run home playing with a ricer. Had a great trip and 2,000 miles on the clock when we got home.
No problems and no oil comsumption either.
One side note: I polished him using Zaino prior to leaving home. Ran into a swarm or swarms of bugs. Very few were stuck to the paintwork but the windscreen required a liberal application of hot water and cleaner to get clean!!
JCW kits can be fitted at any mileage. As Paul said it's probably better to fit when the car is brand new as you can do all the running in together. If you wait then you have to do the running in process twice. Once with the new car and once with the conversion!
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