Now as some of you know Im in the motor trade, quite recently I took a customers car for MOT, she had one of those very expensive Eco magnets professionally fitted and a print out of the before and after fuel figures.
The car failed on emissions and I carried out the usual checks on the ECU and Lambda Probe, no faults found, fitted a new cat
.still failed the emission test. Just out of interest I removed the magnet thing, drove it for about five miles and tried the emissions again and it passed with room to spare.
So you see all you sceptics, those magnet things do actually work, if only to screw up your car.:hysterically_laughi