I sold the box above but I know someone with one and it does seem to work very well, strange as everyone tends to slate them and he says it simply finished of the car it was that good.

I can imagine though that not all boxes will be as slick as that one so it would be nice to try things like this before you buy them but that is highly unlikely !

Edit for video

Same box as above in a 235hp 1.8 NA nova

http://www.youtube.com/watch?v=Tx9aWVQGYs4

Typically its a rubbish video so you can't really hear the box as such but if you have been out in a few Vauxhalls you would realise just how different that is !