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Are 200 cel cats mostly now illegal in the UK?

G

Gizmob73

Monza
Joined
7 Jan 2024
Messages
220
I have recently replaced my headers with Stainless variants as the old ones were disintegrating, and the rest of the system needs some love too.
The silencers are dropping to bits but I've been waiting for TG to get stock.
Whilst at it, I was going to replace the cats as it might be nice to have new Stainless all throughout. They look original and have now covered about 72k miles. Had some grumbles on last years MOT but cat cleaner seems to have worked.
I have got 4 new Bosch lambda sensors ready to fit and was about to push the button on some 200 cel crossover cats when I noticed on the D911 site that they state they are not road legal.
I checked TG for the same looking cats but they don't mention if road legal or not.
A bit more digging around and it seems that at the end of 2023 and again in 2024 the DVSA are starting to prosecute people fitting these. A tuning shop.in Reading and one in Yorkshire were fined. Apparently they have to be EC Type Approved and even if they can pass the MOT emissions test (when warmed up) they are still not road legal, and could fail for not having the correct EC Type Approval.
I see lots of people fitting 200 cel cats so has anyone navigated this potential mine field yet?
Right now I am thinking it might be best to just fit the new valved silencers and lambdas to the original non-shiny cats.
Any thoughts, or have I just opened a can of worms here?
 
isn't the rule in respect to type approval

Catalytic converters​

Vehicles registered after March 2001​

Fitting a catalytic converter​

If you install a catalytic converter on a vehicle registered on or after 1 March 2001, you must check that it is type-approved.

Read the section of this guidance on checking type approval.

Supplying a catalytic converter​

It is illegal to supply catalytic converters that are not type-approved for use on vehicles registered after 1 March 2001.

Vehicles registered before March 2001​

If your vehicle is first registered before 1 March 2001, replacement catalytic converters do not need to be type-approved. The replacement should provide an equivalent level of performance to the original catalytic converter.

Checking type approval​

All type-approved catalytic converters and diesel particulate filters must be permanently marked by law with the following:

  • an EC type approval marking
  • the manufacturers name or trademark
  • the make and identifying part number of the device
Figure 1 shows an example of a type approval mark for the UK.

The ‘e11’ text in the approval mark means that the part is approved for use by the UK.

type-approval-mark.svg

Figure 1 - an example of a UK type approval mark

Not type-approved​

If a part is not type-approved for the UK, it must be marked or labelled to say so.

The wording on a catalytic converter must say:

Illegal to supply for type-approved vehicles first used on or after 01/03/2001
Click to expand...
The wording on a diesel particulate filter must say:

Illegal to supply for vehicles approved to EC Regulation 715/2007
Click to expand...
If you are not sure whether the part you are buying is type-approved, you can ask for a copy of the type approval certificate from the manufacturer or the distributor.
 
Gizmob73 said:
Here is a link to the article I read.
https://www.carmagazine.co.uk/car-news/motoring-issues/illegal-exhaust-modifications/
Click to expand...
Onyx Performance removed the catalytic converter and exhaust silencer from an unnamed vehicle before adding a ‘pop bang’ remap to the ECU. While the company advised that the car would not be road legal as a result of the modifications, they did not make sure the car wouldn’t be used on the road.
Removing a cat and silencer is illegal and results in an MOT failure.

You're still running a type approved 200 cell cat, there is a difference
D911 are referring to cat bypass systems
 
911UK said:
Onyx Performance removed the catalytic converter and exhaust silencer from an unnamed vehicle before adding a ‘pop bang’ remap to the ECU. While the company advised that the car would not be road legal as a result of the modifications, they did not make sure the car wouldn’t be used on the road.
Removing a cat and silencer is illegal and results in an MOT failure.

You're still running a type approved 200 cell cat, there is a difference
D911 are referring to cat bypass systems
Click to expand...
This isn't a cat bypass, it's a 200 cel crossover that looks identical to the Topgear ones.
https://www.design911.co.uk/p/exhaust-catalytic-converter-pipes-porsche-997/

I also looked around and I couldn't actually find any that stated they were road legal, but found lots that aren't.
 
the info says, EC Type Approval.is required to be legal
 
911UK said:
the info says, EC Type Approval.is required to be legal
Click to expand...
The note on that product page says
"Please note: sports catalytic converters or bypass pipes do have type approval and may not be legally installed on vehicles manufactured after 1st March 2001. They can not be used on a public road and are not MOT compliant, they are designed for race and track cars only."

Now I guess there is a small typo as it would makes sense if there was a "not" in there to match the rest of the statement.
 
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