Stelvio Staintune fuel map

[TR4driver]

Greetings all.   I recently picked up a 13 Stelvio NTX with a staintune pipe.  To date i have only put 2 tanks of 94 through it.  I find the mapping to be pretty good.  Smooth for the most part with A bit of a  flat spot around 4K.  But the milage is less than impressive. 5.8 litre per 100km.   I have run with baffle in and out.   I like the pipe baffle out (it does pop like hell) but not willing to sacrifice any sort of performance for the thunder.  So what would you do if you were me? Can you point me in the direction to get a new map specific to my pipe?

Thanks

[guzzisteve]

Go here & talk to Beetle---------------      https://www.griso.org/

[Lannis]

My stock 09 Stelvio with the rollers and an updated (2017) map will push 50 MPG on a highway trip, never gets below 44 MPG.

Put the baffles back in and play a recording for the sound .... !   

Lannis

[coast range rider]

With or without a new map, my experience says that bike will run slightly better with baffle in. You can enlarge holes in baffle for more sound, although will not sound nearly as loud as without baffle in.

New map should reduce or eliminate flat spot just shy of 4000 rpm.

New map won't improve fuel mileage, but removing pannier bags will.