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dave h
hi has anyone fitted a de-cat pipe to a mondeo 2.0 tdci, did it make much differance to power or ecconomy and which is the best to buy. thanks dave
mintalkin
There will be an improvement in both power and response from the throttle. not huge gains maybe 3 to 8 bhp and you get more turbo "whistle" when accelerating, can not say which is the best but make sure its a full bore pipe and not a restricted pipe as some are.
dave h
[quote name='mintalkin' post='36534' date='Aug 8 2009, 04:20 PM']There will be an improvement in both power and response from the throttle. not huge gains maybe 3 to 8 bhp and you get more turbo "whistle" when accelerating, can not say which is the best but make sure its a full bore pipe and not a restricted pipe as some are.[/quote]
thanks for that would you know if it would cause any harm to the turbo over time because of less back pressure thanks dave
red but not so fast!
does anyone know the rules on these? someone told me that you will still pass an mot with these as diesels are tested differently to petrol ? surely you need a cat?
crespo2121
[quote name='red but not so fast!' post='36601' date='Aug 9 2009, 12:16 PM']does anyone know the rules on these? someone told me that you will still pass an mot with these as diesels are tested differently to petrol ? surely you need a cat?[/quote]
Whoever told you that is correct. You dont need a cat.
stef123
[quote name='red but not so fast!' post='36601' date='Aug 9 2009, 01:16 PM']does anyone know the rules on these? someone told me that you will still pass an mot with these as diesels are tested differently to petrol ? surely you need a cat?[/quote]

yup as already said it is legal to decat a diesel. petrol engines are tested on C02 levels etc whilst diesels are tested for smoke.
red but not so fast!
[quote name='stef123' post='36673' date='Aug 9 2009, 09:56 PM']yup as already said it is legal to decat a diesel. petrol engines are tested on C02 levels etc whilst diesels are tested for smoke.[/quote]



thanks guys just wanted piece of mind. seen some on ebay they vary in price from 65 to 120 quid what do you look out for?
stef123
[quote name='red but not so fast!' post='36680' date='Aug 9 2009, 10:38 PM']thanks guys just wanted piece of mind. seen some on ebay they vary in price from 65 to 120 quid what do you look out for?[/quote]

it should just be a piece of pipe with a couple of flanges welded on either end or something to that affect. the price may be because some are just mild steel and others are stainless? i'd go for the stainless if you can.


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