>>It is easy to work out how good an after market Cat is, just ask a local Pyki / gypsies how much they will give you for it. !!! <<

I have used that argument myself a few times Aidan

Anywhoo...

This is an old topic now & most should be up to speed on it.

Here is an excerpt from a case study that I wrote for Pico a good while back.....


Quote...

As of August 13th 2009, a new regulation came into effect that makes it an offence in the UK to sell or install a non-approved catalyst to a car or light commercial first registered after March 1st 2001.

...End Quote

Take a look at the full article....