BOUGHT A TYPHOON POWER UP SYSTEM YESTERDAY OFF EBAY, ( WAS SCEPTICAL ) 5 MINS 2 PLUGS TO FIT AND ON MY 3.0 D4D I NOTICED IT STRAIGHT AWAY, IM ALWAYS SCEPTICAL WITH THESE CLAIMS OF 35 PER CENT MORE BHP BLAH BLAH BLAH, BUT ,IT DEFINATLY FEELS LIKE IT, TORQUE WAS GOOD BEFORE BUT NOW MUCH MORE SO, IF INTERESTED ILL GIVE YOU THE ITEM NUMBER, I LOOKED ALL OVER AND FOUND ONE IN ENGLAND FOR $950 (US) THIS WAS A BARGAIN AT $600 !