Triple yikes

The manual says to fit new ones  Range Rover 4.2 Supercharged 2006
Ford Focus EcoBoost 1.5 2017
MG TF 2003

Previous Cars of note
Land Rover Discovery 2
Jaguar Mk2 3.8 - Company car
MG Midget 1974 - Concours

I inspected mine and there were no marks on them, no corrosion on them, the threads were intact and I could see no reason at all for replacing them so I just used the old ones again.

David. 2002 4.6 Vogue SE - Alveston Red with Lightstone Leather
2012 Range Rover 5.0 SC Autobiography in Indus Silver with Jet/Ivory Interior
2012 Range Rover 4.4 TDV8 Autobiography in Baltic Blue with Sand Interior

Yeah they are only screwed on to 20Nm can’t see why you’d replace. I just cleaned them up and reapplied the retainer and put them back on. Sold - Bell a 2015 MY16 Loire Blue Autobiography 4.4 SDV8
Previously George a 2007 MY07 Java Black VSE 3.6 TDV8
Previously a 04 MY04 Defender 90

Agreed, I think that is the sensible thing to do.

Did you use Loctite 648? Range Rover 4.2 Supercharged 2006
Ford Focus EcoBoost 1.5 2017
MG TF 2003

Previous Cars of note
Land Rover Discovery 2
Jaguar Mk2 3.8 - Company car
MG Midget 1974 - Concours

I did. I had a bottle of it that I'd bought for doing the rear differential so it was handy.

This is the place I bought it from - https://www.ebay.co.uk/itm/353068217026

David. 2002 4.6 Vogue SE - Alveston Red with Lightstone Leather
2012 Range Rover 5.0 SC Autobiography in Indus Silver with Jet/Ivory Interior
2012 Range Rover 4.4 TDV8 Autobiography in Baltic Blue with Sand Interior

Its only a vibration damper fitted to vehicles with the bigger brakes, I resorted to drilling a hole on the casing of the cup and driving it off with a cold chisel.

Tbh I think that you wouldn't even notice anything different if you left them off, unless your Lewis Hamilton