I've been searching trying to find an answer to this, but I'm not really getting anywhere. What wheel spacers would I safely be able to fit with the following setup:
Mk4 GTI 1.8T (AUM)
Lowered on Weitec Ultra GT 40mm Springs & Shocks
Current wheels - 16x6.5" Montreal II - ET 42 - 205/55/16
Planned new wheels - 18x8" Front & 18x9" Rear BBS LM Reps - ET 35 - 225/40/18
Would I be able to fit 5mm spacers on the front and 15mm spacers on the rear with both sets of wheels, without any rubbing? I basically want to improve the stance of the standard 16" ET 42 wheels before I fit the LM reps, but obviously want the spacers I use on the Montreal's to work on the LM's as well without a problem, so I'm not wasting my money. Would I get away with bigger spacers than that? Should I just wait until I get the LMs to get the right spacers for those?
Also - once I know what size spacers to go for, which type do I go for!?

Flat, hub centric, bolt on? Not sure about all this...
