Jardines Exhaust - will I have to reprogram ecm?

[Trirocket3]

Doug
Get T/Boy mixture will be too weak to get full benefit of the 'J's
Ecu will not do the job on its own
Les

 

[Jimmy Rocket]

and your bike will run too lean (read "HOT"). But maybe the dealership where you bought the bike can do a tune for you for the short run. Some dealers have TuneBoy and can just buy the serial number key for your particular bike.