Quick question on De cat

Hello quick question on de cat, got a clio 197 and de catted and fitted a piper exhaust, now its time for its MOT, I've done some research on here and some people say you can leave the de cat pipe on because there is another 1 on the manifold and some people say the opposite. does anyone know for sure before i book it

thanks very much

martin.
 
I wanted to find this out otherday bud and I've found that if you have 2 cats standard you need two cats to pass mot but obviously the guys doing the work might not know there's 2 standard ... Or you could go to more a back street ish place and explain situation ..
 
yay, just a quick update for other people to remember, took my clio for mot today its passed with de cat pipe in place and also had aftermarket xenons with the projector style bulbs and again no problems. no self levellers or washer jets

martin..