Nissan is increasing procurement of components from Toyota suppliers, leaving behind the traditional 'keiretsu' system and pursuing best-price and quality. Toyota's biggest affiliate, Denso, is to supply a common rail fuel injection system for the diesel version of Nissan's X-Trail SUV. The orders are worth Y1.5 billion (US$12.6 million) so far this year, in comparison to Y300 million for the whole of 2000.