If the dealer installs the tune, no.  The ECM has to be retuned for the decreased backpressure in the exhaust.  Triumph dealers have the standard re-tune available.  If you later add the 5 filter K & N setup you'll need a remap as well.  I ran the stock exhaust setup (just bypass) and it was much meatier (less Singer buttonhole model).  The decel pop didn't arrive with a vengence until I went with the K & N setup.  That Tuneboy resolved nicely.  Good luck.