Is this part of the filter assembly, if I buy a new ITG or similar big filter will it come with a new plate? I cant find anywhere that sells them online with pics to see what you get. I dont think it does come with a new plate but wanted to check, also is it OK to just undo all the allen key bolts to get the trumpets and plate off to get the rust off?
At the moment the filter is at the end of the ducting (which was placed down towards the undertray, not at the hole in the side of the car) so is it best to leave it as-is (filter is clean now) and get the plate powdercoated or sand it and hammerite it?
I dont have an oil catch tank, at the moment it vents back into the airbox, is this a worthwhile thing to do (there was a fair bit of oily gunk in the airbox)
Pics to explain


