Montague: thanks for confirming the existence of the swirl flaps; I have learnt something.
Agree too with your comments on the EGR valve, something I have just had to replace to get rid of the MIL that came on a couple of weeks back. So from what you say, that can be ditched and blanked off without any remapping or suffering of performance. Maybe “illegal” as far as MOT is concerned though…if it gets noticed that is!


Doug
2011 Plus 4 in Rich Maroon

1972 750 “ComDom” sprinter
1958 Triton 650
1992 Triumph Trophy 900