Here's my contribution! 2006 3.0Si on M-Sport Suspension Stock Height
225/40R 18 x 8.5 et 35
255/35R 18 x 9.5 et 45
VMR 710 in Gunmetal Finish
I think that a 18x9.5 + 35 would fit much nicer than the 45 in the rear if you want to get more aggressive.