Originally Posted by Nutty
a) It's the new Euro 4 compliant filter designed to stop the venting of aromatics to the open air.
b) The engine is mapped to that filter. Decide which exhaust system you wish to run and then load the 'closed-course' map to suit that pipe.
Welcome to 2017.
Thanks Nutty.... Didn't realise "aromatics"
or anything for that matter came back out of the airbox??
It's an FE350 and only has a map switch with Traction, Standard and Aggressive modes and don't know about "loading" maps???
What will happen if I run without the Euro 4 bits with the stock pipe on standard mapping??