It wouldnt be of any worry where you live, id use the bussiness post to send them to you but i can only offer 2 im afraid. As for where they go you just have to snip off the plug and solder the reistor between the two exposed wires.
Ok so was my birthday today and the car passed MOT. ANd no more fault codes!
so I'm all happy again.
Only need to get my 2.5" DP on now on sat and then next month time for Revo stage 2