Car is a 53 and at 32k, the pre-cats looked fine but I am still happier with them out.Took about 3.5 hrs and went okay thanks to the guide on here.
I had to pay 8 quid for a oxy sensor socket but took care of the rest with a 1/2 " and 3/8" socket set. Gaskets went back on okay too.Sheared a bolt underneath that holds the plastic tray up but drilled it out and used a couple of tie-wraps to secure.
The car feels like it can
"breath" now too, a bit like after you have had a new car and the engine loosens up. I am sure it's slightly different. Didn't notice anything negative.