They have a few places one in Inverness, one in Elgin and I think one in Aberdeen.
Precision Engine Services (Inverness)
48, Seafield Rd
Inverness Inverness-Shire
IV1 1SG

Tel: 01463 235537

or
Precision Engine Services (Elgin)
Unit 11, Linkwood Ind Est
Elgin Morayshire
IV30 1XS

Tel: 01343 547870

Owned by a rally driver petrol head. Who hopefully one of these days take to the forests in his RS200. and retire the 6R4 once and for all.