I used H&R spacers they bolt on then you use the original wheel bolts to attach to the wheel.... I'll get a photo soon... the day I added the spacers was a big one as I did the following in the space of 5 hours all on my lonesome !!!

1. Went and hired a sabre saw
2. Removed rear wheel arches and bumper
3. Cut the exhaust pipe and added the oval pipes extensions
4. Put the bumper back on added the flared wheel arches and mudflaps to front and back (had to remove the 4 wheels one by one !)
5. Added the 30mm wheel spacers (greased them up to ensure they don't bond to the wheel if they need to be removed)
6. Changed my D1S HID headlight bulbs to Philips 6k Ultinons...

Next mods are gloss black grills at the front including painting the lower silver trim under the fogs to black... wiring up the Angel eyes to not dim when headlights are on, Hid 6k lights in the fogs (gonna try 8k HIDS in the Angel Eyes also to see how they look , if too bright I'll just stick to my Hoen H8 but with a full power circuit when on and a delay feature...)...