Thee cheapest way of doing it is buying the same set up as John of Awesome, Cupramvr, has got.
Try pming him.
He's had several track days on his so im sure he'll be able to help you out.
Might give these lads a bell and also Bill of the Bagder 5.
http://www.godspeedbrakes.co.uk/~godspeed/product.php?id_product=82