It's an old car being a 55 plate, but I do like it and enjoy tinkering.

I'm just cleaning egr and turbo so it's running nicely, but then wondering if there is any recommended upgrades?

A remap sounds nice, going from 105 bhp to 140. But don't know if worth spending too much on.

Any other DIY tweaking/parts people have experience with?

I'm at the same stage, with the same car. Also looking for ideas