im pretty sure there isn't one thing i haven't done to a car in the way of services, manual conversions, engine conversions, turbo conversions, injectors, suspension, wiring looms (from the start), custom manifolds, exhausts, diffs, clutches, full rebuilds (now doing rotarys) trans and tuning!! but when it comes down to it unley nissan have information and equipment for these cars that no one else does, their technicians need to go learn about each car etc, so if i didn't do it all myself i would go to unley nissan for a service anyday. They are qualified and in the game, They get beaten down to their knees if a vehicle comes back with issues.