My GDI passed the MoT today with the slightly modified air intake system and K&N filter. But the Lambda was on the rich side, and the exhaust tailpipes, (which have been clean since having the AR flash) were sooty after Scotland, so I may refit the standard filter and see what happens.
I may also meddle a bit more by removing the long ducting pipe and see if I can get the air in through the side louvres..........
Yes Dave your last article in Miscellany was good timing and look forward to the next instalment. I too was going to try and remove the long ducting pipe when we get back from holiday and also check the air temperature of the air intake when this was removed.
Our exhaust has always been spotless and normally average about 43 mpg. As the K&N lets more air in I would have thought it would have been on the lean side.
