1.5DCi or 2.0VVT?

[Martin_172]

And how does that make them 'no point'?

£80 for a tuning box or £450 for a map...that's the point.

I ran one for 65k and made a hell of a difference.

because Tuning boxes just ramp up fuel pressure and massively reduce the life of the high pressure pump!, if I wanted to do that I would rather put sand in my fuel tank, its massively cheaper

 

[AdDaMan]

Oh really is that a fact?? No.
Have you used one? Probably not.
First hand experience mate.
And sand in your fuel tank would do f**k all aswell, so your analogy was pretty much bang on. ;-)