What's the mileage on yours Adrian? IIRC it fairly low so wondering why it has disintegrated.
Mine is 19 years old now, 142k miles, I have had it for last 8.5 years and as far as I know cats have never been replaced. Emissions have steadily improved over the years I have owned it. MOT test limits are 0.3% CO and 200ppm for fast idle and 0.5% CO for natural idle. It started with something like 0.01 % CO and about 30 ppm of HC, last 2 MOT's it was doing 0.00 CO in both fast idle and natural idle and HC was just 8ppm at fast idle.
Maybe PF cats were better made then cost saving cut in for PF so might be an idea to fit second hand PF cats if they fit physically, of course you would need to find a way to fit after cat lambdas as PF never had any.
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Currently 8less
2011 Q7 S Line 3.0TDI, 2016 Tesla Model S 90D
8 history:
2006 A8 Sport 4.2TDI quattro SOLD,
1997 S8, reached end of life with gearbox failure
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