I'm looking to install Two Brothers Racing, Black Series Cat-Eliminator Slip-On Exhaust Systems - M-2 Titanium Canister. This system appears to eliminate the Cat but does not refer to any tuning/mapping/flashing computer etc. After installation they go on to say " Run the bike and enjoy". Can this be realistic or should the bike be tuned for the new upgrade? The web site provides no details in this regard.