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Having 're read this entire thread ( https://forum.elgrandoc.uk/threads/...and-the-do-not-remove-rear-cats-debate.18398/ ) again this morning here are my conclusions and the options available of which there are at least half a dozen. Rough costs are an estimate on people's postings throughout the forum. So please dont abuse me if some are slightly inaccurate!!! No agenda as I don't even own an e51 so completely impartial take on the matter.
Option 1.
Remove/decore the rear cats. Cost £100
Pros- cheap and easy. Van down time = a couple of hours.
Cons- not a 100% safe fix, and could still have future problems from front cats blocking themselves.
Option 2.
Remove/decore the front cats leaving the rears. Cost £400
Pros- eliminates chance of cat break down and blockage. Still a reasonable price.
Cons- more difficult to do, greater difficulty finding someone to carry out the work. Emissions feed back unknown. Van down time = 1 day
Option 3.
Remove/decore both front and rear cats and replace with aftermarket cats down stream. Cost £900
Pros- completely eliminates risk of old cats disintegrating. Healthy emmisions.
Cons- more expensive, very, very slim chance aftermarket cat could disintegrate in future. Van down time = 1 day.
Option 4.
Complete new stainless exhaust system with aftermarket cats. Cost £ 1200-1700
Pros- removes risk of original cat disintegration, sound lovely will last a long time.
Cons- more expensive. Very, very slim chance of cat failure. Van down time = 1 day
Option 5.
Lpg install. With full cat removal. Cost £2000+
Pros- eliminates any possibility of cat failure, cheaper fuel for future use. No emission worries at MOT as tested on lpg not petrol.
Cons- more expensive process, future lpg servicing costs, not all systems/setups are perfect causing possibility of other mechanical issues. Van down time = 3/4 days. Plus delivery/accommodation costs during process.
Option 6.
Carry on as you are with whatever process you've already done or not done.
Pros- live in a world of bliss and worry about what if's later. And enjoy life and your Elgrand.
Cons- your car could (But might not) breakdown at any moment. Expensive repair bill (£2.5k) or scrap value only.
Do with this what you will. The info is out there for anyone to read and make an informed decision on how, why, or what you want to do to extend the life of an Elgrand.
Don't think this discussion will ever go away, so long as people are still buying elgrands and not doing their homework on them.
Option 1.
Remove/decore the rear cats. Cost £100
Pros- cheap and easy. Van down time = a couple of hours.
Cons- not a 100% safe fix, and could still have future problems from front cats blocking themselves.
Option 2.
Remove/decore the front cats leaving the rears. Cost £400
Pros- eliminates chance of cat break down and blockage. Still a reasonable price.
Cons- more difficult to do, greater difficulty finding someone to carry out the work. Emissions feed back unknown. Van down time = 1 day
Option 3.
Remove/decore both front and rear cats and replace with aftermarket cats down stream. Cost £900
Pros- completely eliminates risk of old cats disintegrating. Healthy emmisions.
Cons- more expensive, very, very slim chance aftermarket cat could disintegrate in future. Van down time = 1 day.
Option 4.
Complete new stainless exhaust system with aftermarket cats. Cost £ 1200-1700
Pros- removes risk of original cat disintegration, sound lovely will last a long time.
Cons- more expensive. Very, very slim chance of cat failure. Van down time = 1 day
Option 5.
Lpg install. With full cat removal. Cost £2000+
Pros- eliminates any possibility of cat failure, cheaper fuel for future use. No emission worries at MOT as tested on lpg not petrol.
Cons- more expensive process, future lpg servicing costs, not all systems/setups are perfect causing possibility of other mechanical issues. Van down time = 3/4 days. Plus delivery/accommodation costs during process.
Option 6.
Carry on as you are with whatever process you've already done or not done.
Pros- live in a world of bliss and worry about what if's later. And enjoy life and your Elgrand.
Cons- your car could (But might not) breakdown at any moment. Expensive repair bill (£2.5k) or scrap value only.
Do with this what you will. The info is out there for anyone to read and make an informed decision on how, why, or what you want to do to extend the life of an Elgrand.
Don't think this discussion will ever go away, so long as people are still buying elgrands and not doing their homework on them.
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