If I would have known of best Japanese I would have used them but I never heard of them before now. It doesn't matter where I got the motor you would think a business wouldn't sell a motor that set on a shelf for 9 years regardless of who its from. For your info a D15Z1 is out of the Economy Vtec hatch, and as far as useing someone else your the person that just said they have a motor for so much when you just tried to down me on buying a motor from them when it was out of a wrecked car... etc... when they should check the motors more thoroughly before they try selling them. Just saying...ain't trying to start no shit with you.