I live very close to Porsche Chiswick but I take my Turbo and previous 993 to GT One in Chertsey but RPM did do the PPI for the Turbo. GT One are also busy but may be able to help you in a quicker time once you explain the sale hangs on it.
For the record i would certainly have looked at the RPM turbo too, id like a road car with the PCCb's.
For the record i would certainly have looked at the RPM turbo too, id like a road car with the PCCb's.