I just ordered these and these sizes are the recommended sizes by work
2. WORK EMOTION XT7 - 18" 9.5J +38, 114.3 - Colour MGS --- Although they are mentioning in the remarks that rear fender lips might have to be bent a bit if the tyres are touches, this is the exact recommended size for the rear of ECR33 Skyline on WORK wheel matching list.
3. WORK EMOTION XT7 - 18" 8.5J +32, 114.3 - Colour MGS --- This is the exact recommended size for the front of ECR33 Skyline on WORK wheel matching list.