To Mountune or Not, my Focus ST - MP275

[alexp999]

After having spent the last 6 months certain that I didn't want to upgrade the car, I find myself starting to come round to the idea of wanting to have the MP275 kit.

It is expensive for the Focus ST, about twice of cost of having it on the Fiesta ST, as it includes an intercooler.

There is a £100 cashback promo on if installed before end of March which is hastening my thoughts, but I don't want to rush in to it because of that. (assuming the garage can even get the parts that quick).

If I do any performance upgrades to my car, it will be mountune, due to warranty (mines extended to 5 yrs), insurance, etc.

I know a lot of people say it is a no brainer on the Fiesta, but I just don't know whether to do it for my Focus...