i've been looking into getting these done locally, and obviously cheaper in bulk so though i'd see if anyone else is after some
they will be exact copies of standard gt turbo liners, but machined from EN24T steel, then honed by a local engine builder so are ready to go
They are looking to be approx £300 a set of 4, which is less than half what the k-tec ones are
if anyone is interested then let me know