I have a 2009 Griso 8V and for 14,000 miles it has run OK at best. Lots of surging at lower RPM's, lots of backfiring on deceleration and this is after the most current maps, valves adjusted, throttle bodies synced, fresh plugs etc. I finally bit the bullet and sent my ECU to Todd to be reflashed and installed the performance air box. The GRISO is a completely different bike. No surging and NO backfiring. In top gear at 2000 RPM it is smooth acceleration. Above 5K it is very good.
If I win the lottery I'll go for the Power Commander.
If I win the lottery I'll go for the Power Commander.