Mods after cert questions

[GotFlex]

I have had my cert plate for 2months now, i want to change my 15x10 i have on it to the 15x8s i have and get rid of my flares, as the rims and flares are on my cert plate will this affect it being up to wof standard? what about the guys who run road tires with different rims etc.
What do you lot with certs do when you want to change stuff

[gimmemud]

I've got 15x10 rims 35" tyres on my cert plate. Got a warrent on 15x8 rims and 33" tyres

[DaveM]

Check with the certifier, but its usally going over a certain track width that requires a cert, whereas you will be going closer to stock. You are only required to run the flares if the tyres protrude from the guards

[GotFlex]

Sweet that a good start, but what does your insurance say? would it still be covered was my other question i forgot to add ??