Unit was purchased for $154 plus shipping. The gasket was used and torqued only once. The HKS may be reused up to 5 times. It is a solid metal head gasket, probably the best made and I can assure you that you will never blow it out. Selling for $100 and it is in perfect shape. Will lower compression 1/2 a point. I want to get the 1mm gasket to raise my compression back up to 8.8:1.