De-Cat a Mk3 GTI 8v

[richandhazel]

I've still got my lambda sensor.......they cut the boss off the old cat and welded it to my new pipe.

[Cupra Turbo]

Why do newer cars need cats? surely new engines are cleaner than those iron blocks that they used to use in the 80's etc...

i'd have thought if new cars needed em then odl cars definately should need em... i always see old E reg's etc puffing loadsa black smoke during gearchanges etc

[golfvr6]

Newer cars need cats to cut down on emissions, it makes no difference really, all engines in good condition burn fuel so will emit something, cats turn the harmful gases into water and harmless gases.
Theres no way any engine is going to produce under 0.5% co without a cat, this is the limit for the MOT.

[Cupra Turbo]

and older cars dont require them cos they werent standard?

I think any old car that had a cat, shouldnt be allowed to remove it

[golfvr6]

The regulations for emissions are much more relaxed for cars registered before Aug 92.

[Cupra Turbo]

they should chage the regulations then!  

[i-espedair]

But cats are expensive units and fitted to old cars they would seriously screw up an engine that wasn't designed for one meaning further expence.

They couldn't make everyone with an old car by and fit a cat. Would be ridiculous! ...But bloody funny... hang on... I don't have an old car...

... Yes lets change the regulations! Give all you mk2 owners something to moan about!

[Cupra Turbo]

yeah, fit a cat to all those mk1/2's ... heh heh

[Veedubgt18v]

you only want that to slow us down so you lardy arse mk3's dont feel left behind  

[mk1]

Putting a cat on a early car will produce more pollution than a correctly set up engine. To manufacture the cat causes a heap of bad stuff, just not in our back jard tho. Bit like having a electric car, the exhaust pipe is at the power station, not the back of the car. Cats were a product of the gummermint, not common sense. Gee, I have had a bad week , must stop moaning.
Steve.