The chip plugs into the J port on the ECU and the car will run on this but, the MG fuel pump is different to the Ford pump. I only used the chip to get the car to the mappers. I've used two mappers, Jamsport in Northhampton (who I no longer use !!!) and John Sleath Race Cars in south yorkshire. Have a look on Johns site he's tuned some of the best drag cars in the UK.
What you don't need from KB is the cold air kit (it won't fit), the boost-a- pump (it destroys the MG fuel pump) and the chip (i've got one if needed).
For me the best of the tuning kits available is the KB kit, it's easy enough to fit, you get good results for the money, and with a bit of money LOL 700 BHP is possible
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Having said the above I'm looking at twin turbos, cos no one else has done it LOL