NCT emissions DE-CAT pipe workaround

100gSoma

Is there any way around failing NCT emissions if you have a full system with De-Cat pipe installed.

I realise getting a standard exhaust(with cat) is an option albeit an expensive one. I cannot find any secondhand exhaust at the minute.

I chanced the car in the NCT 2 years ago and it was WAY over allowable limits. I installed an original exhaust and hey presto no problems on the re-test, unfortunately that exhaust has long since been butchered for parts by the guy I got a loan of it off.

My question is, is there some sort of universal or temporary solution? something I can shove into the exhuast? I cannot buy a universal cat as my full system is all mig-welded up so it would mean cutting it.(ouch). So I either need a full second hand exhaust or else something I can out into the exhaust. This is only temporary. Like a 1 hour fix, just for the test. maybe I could get an old cat and make something and put it in the downpipe? any ideas?

chores...

gyppo

I cant see any way around your problem, I'm afraid. The whole purpose of the CAT is to filter harmful emissions. You will need to either:
install a cat within your own exhaust system - or -
replace your system with a complete exhaust from another car.

layke

All of my mates have had to replace either the CAT or the whole exhaust. It's a trip to the scrappies for you i'm afraid.

Henry Ford III

Think of the environment!;)

ismynametoolong

What make and yr is your car
If its pre 01 then the cat is not monitored by EOBD and you should be able to
get a standard cat inserted inline. It will take a little work but you can cut out about 2 feet obtain a good cat and weld accomodating ends onto the cat and your original pipe and make a corrosponding straight piece then its just a matter of bolting on and off when needed !!

100gSoma

damn it!... thanks for the feedback lads. I guess I was expecting some sort of miracle cure like

1. soak a sponge overnight in honey (must be acacia honey only)
2. rinse sponge the next day in 2 parts vineger 1 part WD40
3. wrap sponge around an unused brillo pad and insert into exhaust.
4. This will cut emissions for 50 minutes only.

I guess Im off to the junkyard...