had my car in for an mot yesterday and besides the usual bitching about it doesn't have a cat it failed on emissions because they are pretty high even without a cat, the car is a green top 93 saph with stage 3 ahmed chip, greens and a t3 3bar etc.....
Anyways here are the readings.

Fast idle test 1ST
Engine RPM 2750/3150
CO % VOL LIMIT 0.3 ACTUAL READING 4.42
HO ppm VOL LIMIT 200 ACTUAL READING 241
LAMBDA LIMIT 0.95/1.09 ACTUAL 0.95

2ND Fast Idle Test
CO % Limit 0.3 actual reading 4.73
HC ppm VOL limit 200, actual 258

natural idle test
CO % Vol limit 0.5 , Actual value 4.98