Catalytic converters - do pre '1995 cars need them - Paul Whitehead

My '91 Volvo 940's Cat is fine, but when it's knackered do I need to replace it?

Although my Volvo and many other cars were fitted Cats, I understand that due to delayed regulation, only cars registered after {around } 1995 need cats.

Can I replace it with a straight pipe and still pass the MoT?

Are such straight pipes available off the shelf, or would it be a custom job?

Or should I get shut before the Cat is a goosed?


Paul Whitehead,
Re: Catalytic converters - do pre '1995 cars need - Guy Lacey
It seems straight forward but methinks not.

1991 J and below can run without a cat - full-stop.

Some models (as explained by HJ earlier in the threads) had extensions and can run without a cat if made post-91-J but I'm not sure of the detail.

If your car is a 91 J then I would say dump the cat but best to check with your local MOT testing station first, after all, they will be the ones failing you if you take it off.

I think, and I may be wrong, wrong, wrong - that there are very few cars (UK only - not import) with a factory fitted cat that do not legally require one.
Re: Catalytic converters - do pre '1995 cars need - fred smith
yea its not just the "can i legally run wihtout a cat" bit...

its also the engine will be set up for a certain amount of pressure from the exaust system, and removing the cat and replacing with plain pipe may change significantly
Re: Catalytic converters - do pre '1995 cars need - Andy Bairsto
It is not against any law to run any vehicle without a cat.The only stipulation is that it meets the emission criteria of that model of vehicle .The simplest but costliest way is to fit a cat ,and by doing so increasing dangerous polutents into the air.The best way is to use a lean burn engine.Ford has produced engines far cleaner than any cat engine but regs in America do not make it a viable propsition.When you travel to the old eastern block ,middle and far east you see what a mockery all these regs we have in Europe are.I think one Indian bus polutes about the same as 20000 fiestas
Re: Catalytic converters - do pre '1995 cars need - bogush
The (latest) thread you're looking for is:

And what's been going on - go away and within half a day you're all being disrespectful to new visitors, never mind the regulars.

And complaining about boring, irrelevant and non technical threads (presumably not about pet hobby horses), not to mention repeated topics.


Now where have I seen those recently?

I see that we've had a somewhat "traditional" lady posting.

I wouldn't be surprised if she was preparing a lecture on beams and motes in eyes, glass houses, doing unto others, loving thy neighbour, with maybe an aside on beauty being in the eye of the beholder, not to mention the self centredness of modern society.
Re: Catalytic converters - do pre '1995 cars need - honest john
Bugwash, your post has nothing whatsoever to do with Paul Whithead's thread about cats on pre August 1992 cars.

Re: Cats, Relevance, Bugwash, Insults and Hypocric - Bugwash
Just spotted this.

The link has nothing to do with cats?

The rest has to do with multiple threads.

Which this is. And so the post is a relevant response.

And it's to do with hypocricy. So it's becoming more relevant by the ninute.

BTW you are corrupting a name given in honour of a deity and using it as an insult, but as you are by definition one of the "in crowd", such insults are acceptable, I suppose.

And when are you going to have that misleading introduction to the forum changed?

You don't want to be reported to the trading standards do you?
Re: Relevance - Bugwash
I sympathise with the policeman in this case. But why did he need "counselling"? Soon we'll be getting reports along the lines that a ten year old kid said "boo" to a policeman and as a result the policeman needed "counselling". Anyone know of any PLCs specialising in counselling? I'd like to buy some shares in one of them.


And the connection with cars?

Doesn't sound very sympathetic to me.

Or is this a twist on what you English refer to as a backhanded compliment.

I think that if I'd knocked a kid down: I'd need counselling. And I'm a sick, sociopathic b*st*rd.

Value my car