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Will only be slightly bigger than my track car brakes Needs it though, brakes are shocking for the car standard!

Get those steps in Dave! It'll do you good mate!

Hey guys, Recently bought a japspeed 4-2-1 manifold for my mb3 (https://www.japspeed.co.uk/honda-civic-4-2-1-d-series-tubular-manifold.html) which said was a direct bolt on fitment to original standard/aftermarket cat/decat. Now I know on my civic the cat was in the manifold but I assumed the bore of the cat would be the same as the rest of the exhaust system (standard). It isn't. Bore of japspeed is 2" and I believe standard is 1.5"/1.75" as it's not a proper fit. I can fit it so it's not blowing but the rattling is hella annoying. Is there a 2" bore centre pipe and backbox (would assume the backbox would need to be the same size as centre pipe) that I can buy relatively cheap? I've tried looking but can only find stuff like m2 motorsport. Is an mb6 standard pipe 2" bore? Just asking because there's a couple of cheap ones on ebay. I would at some point change the rest of the exhaust system but want to fix/do other more important things first! (timing belt, handbrakes cables, etc)