Yeah I didn't realise that haha
I pulled the 172 one out the top (no inlet manifold as I'm on ITB's)
Threw it away, fitted a new starter motor, went to fit the 182 one and went "DOOHHHHHHHH" so loudly I suspect people in nottingham heard me lol
3 hours on my back undoing subframe bolts and rack pipe clamps - finally got the subframe low enough to slide the 182 one in place