Yeah, it will all pivot once the thumb clips are undone. Wiring and harness clips are decent quality if memory serves, I used to undo headlamps multiplugs all the time due to some poor choices regards bulbs and they never came to bits.Thanks Steven. I think it'll just be a case of easing it up gently and watching the wiring loom. If it proves too dodgy getting a workshop to do the plugs won't be that bad if I've done everything else. In fact it's just occurred to me that the lads at our wee Honda indy: https://www.bonningtonmillgarage.com/ might be into obliging me, in which case I might just duck out of doing the plugs. Mind you, if they were done when recommended by age then they'll be the second set and only half way through their life. Trouble is this car has excellent service history for it's earlier life but very little known for the last two or three years.
I said 3...I meant 4 if you look above Mazda logo theres another facing the firewall. Can just see the top of it peeping over on the photo.
Having had a quick scout it seems to suggest leaving clips in place and taking whole airbox for plugs rather than split it.
Although this is a 3 with a similar setup.