Hi Kev
if your fitting the 8 x 17 et 35 on the front you will defo have to do the arches and trim the kit and not being funny i would uprate the suspension aswell because under hard braking it will most defo catch
i have 8 x 17 all round on the 3dr which are all et 33 i had to trim the arches and trim the arch kit has no choice
and when i used the 235-610-17 slicks all round i had to have the arches all folded after that because they were catching.... a 235 slick is like a 255 road tyre
my car under heavy braking doesn't move/dip and my car doesn't sqaut either when launching
personally think if you putting big brakes on the front with standard suspension your asking for trouble
this is the way my car sits.. it is pretty low but nothing catches under braking or speed
alot of peeps can get the wheels on but you look at how high their cars are to stop catching the archs
marco