I bought it off another member of this site, but have not used it much. If I am honest, I keep putting my foot down as the power is addictive, and I am wearing my new tyres out!

So, the box is used, but works well. I will accept £30 all in. Instuctions to fit it are listed on this forum, but I will gladly help you out with advice if you get stuck.

This is the quickest mod I have ever done to my car, and I fully recommend it.