I'm in the same position... New 999s. Fitted the end can but couldn't be bothered to take the downpipes out... Rides well and sounds great...
I've no idea when the flammin ECU chip fits in - Anyone know b4 I start ripping the fairingS off?
Also, if I';ve not fitted the downpipe is it going to make much difference? Anyone know how the included ecu changes the maps? Lower/upper/idle etc?
And i know I'm going to regret getting so far and not putting the downpipe on..

Just wanted to get out...
Cheers,
Darren.