Your car looks nice mate, love the colour & like what you've done to the front bumper.
Ha yeah, swapping seats would be a good idea, my blue ones would go well in yours and your grey ones would work well in my silver car! However, i'd loose my heated seats...!
I suppose that I've been gearing up for a remap really anyway - new front tyres and a glow plug change. Plus once I've got the new cam belt and oil change it'll be ready to go. Just need to find a decent and reliable place to get it done that is local-ish to me... & thats reasonable-ish too!
As for your suggestions on the exterior, I like the front splitter but as you say, they're very rare and I was just going to get a cupra front splitter and see how that looks with my votex rear skirt. Then, I think I heard that gti side skirts are very cheap from volkswagen? £35 a side?
I bought some new alloys - i'll get a picture up of them. I'm not really that keen on them to be honest, but got them for a good price off a mate so couldn't say no. He had them on his fabia vrs.

If I do put them on then i'd need some coil overs as they're 18". I would of preferred some tt competitions or something similar but we'll see...