[HeadDoctor]

Jester

Are these the Racing Head Service name??
If so they are the New Zealand stuff
When Pro-Topline bought them out they sent all the stuff to China and the quality disappeared. After that faild RHS bought the Pro-topline and kept it in China under that name for awhile and finally moved it back to New Zealand.

Today we must be very careful of what we buy because much of it comes from China or Tiwan.

You could also consider Brodix

Denny@JDS INduction Products