Cynos/paseo Rear Hub

[Fia]

Hi!

Please help! My MOT is due thursday and I have a gigantic painstaiking problem. 3 weeks ago I changed the rear brakes. I had trouble getting the "cap" off, but off it went. Today when we tried to replace the handbrake wire the stupid thing wont come off. And we dont own a impacthammer. :/ We suspect the bearing got one hit to many since the last mechanics that were at it didnt tighten the centrumnut enough...

All ideas are more than welcome

[R1L3Y-12]

Im no to sure whats what with cats but was wondering if someone could help me... whats the best cat to get my glanza ep91 on a td04 turbo, i have a custom made exhaust no back box no silences completely straight through but need a cat for the mot what would be the most efficient and best to get it through the emissions test a 100 cell 200 cell 300 cell or 400 cell cat please help