I have a Roadster S1 from 2004, and have just realised that the trumpet leading air from the inverted louvres to the air box is lacking. The box itself and the filter is of course there, but not the trumpet. So the air is just sucked into the rectangular opening of the box, but not rammed in, as the trumpet might have done. Is this of any importance to an everyday driver? Lack of performance? Should I search for a trumpet (I know what company made them) or could I put on some other filter with any change in preformance, for example an ITG?
Greetings from Norway!
Robbie M.
