So stainless steel isn't an upgrade/modification? I'm hoping the sound is an improvement :)
I ask here because everyone I speak to tells me different.
A mate wrote this to me yesterday... 'Insurance - "yes Mr S, any part fitted which is not a manufacturer part must be reported to us, or the insurance is void". Me - "so if I fit windscreen wipers from Halford's and don't tell you, my insurance is void?!?!" Insurance "err, well, yes, I suppose so".'