I installed a Blueflame exhaust with race cat a year ago and now was the first time to test if it was okay.
I arrived 11.00 at the MOT building. At 11.20 my registration number was shown on the board and I drove inside the building. They checked emissions but it didn´t pass
. The cat was too cold. I started to think that maybe the cat was a piece of *hit. The MOT guy told me to get in the car. "Lets take this baby outside for a spin" he said. After driving around the MOT building for a while he checked the car again. It passed!!!
So all you people out there that uses Blueflame with Motorsport cat. Don´t worry, it works