ok thanks guys,
as you can tell i am clueless to all this stuff, and as much as i trust K and his team i just want to know as much for myself going into it,
solarics if you could find out for me that would be brilliant as i will get on to finding and sourcing the little piggy back thingy,
well the aim of doing all this work is to give me as much pulling power on motorways and getting from 30/40 to 70/80 to make local saxo boys look like tits.
but as you say, first off i will be getting the kit fitted and seeing how it goes,
as the car is going to be my daily i need it to be reliable to the max, i do 300 miles a week lol
thanks for the replies guys.