This is a genuine Porsche NOS - NLA part. They are very hard to find and this is the best crankshaft to build a stroker motor from. It is 2.5kg lighter than the S2 crankshafts. There are no more new ones from Porsche. They ran out of them almost 10 years ago. Please be sure that the part/part# is compatible with your vehicle before purchasing Includes everything you see in the photos