erm this is where it gets tricky!!!!!
im on et37 but with the 17s i needed to fit 5mm spacers on the front which technically changes the offset on the front to et32!!! BUT the coilovers neeed to be set up perfectly otherwise (as many of you may of seen, cracked wing time!!!!!) But if i were to put 5mm spacers on the rear the wheels wouldnt fit cos the tyre would rub like buggery on the back
My set up
Front ET37 with 5 mm spacers = ET32 lowered 100mm (some rubbing on full lock)
Rear ET37 no spacers 110mm drop (no rubbing!!)
TBH i think theyll fit ok on the front, but you will have to roll the rears more than ive done on mine!!!