K&N Typhoon intake/emissions test fail

[baltimart]

Anyone fitted this system then failed MOT emissions test (CO2)
CHEERS

[S7Paul]

Fitted one to my daughter's Mk 2.5 1.8 Sport a few years ago and never had any problems on emissions.

[MX-5 Lazza]

baltimart said:

Anyone fitted this system then failed MOT emissions test (CO2)
CHEERS

Which model/engine did you fit it to?