A quick grovel under the Marea revealed the reason for the increase in engine noise, the pipe between the centre and tail boxes has corroded and is blowing slightly. Well no big deal I thought, then I checked on buypartsby and it was £90 before VAT and shipping. The cat site was similar our local autofactors was £147 before VAT and one fitted (prolly the worst quality) at a local exhaust place £200 inc vat. I know if you can get a good one at a scrappy its a lot cheaper but a 1.8 Weekend is a bit of a long shot. Anything I'm missing or should i get used to the idea of saying goodbye to over £100.