i have a gt28 for sale as i am going down a different route now. the turbo had a new core from regal motorsport last year with receipt to prove, has polished cold side ( few marks though ) and actuator still attatched with turboosmart boost controller. there is a 3" downpipe included in sale and water pipes which will probably need mated to your own car but holds boost perfect and no smoke!!
any questions just ask £600 posted
pics to follow.
cheeRS