In London
In London
brakeparts.co.uk
conceptua tuning google them, there stuff does the job and its reasonable on the dollar.
Found these genuine ones on eBay
http://www.ebay.co.uk/itm/4x-Nissan-...item43b258ab7e
http://www.eurocarparts.com/brake-pads
Parts25 promo code will get you an extra 25% off as well.