REGULATOR
Turbocharged
Pipes that are free-er flowing ( Louder) will require a retune.... if they flow substantially more .... when My bike was Stock, I drilled out the baffles somewhat to just open it up a wee bit, and only did the 12minute retune and was fine
The simplest thing is to buy the Triumph brand ones and get the dealer to install the appropriate tune....
If you can't wait You could measure the stock pipe, and see how it attaches and see if there is a similar size Slip on muffler (designed for another bike) to replace it...
Or just wait until a couple companies start making slip ons for it, from my trip to Daytona several manufacturers were gearign up to make parts for the R3T....
The simplest thing is to buy the Triumph brand ones and get the dealer to install the appropriate tune....
If you can't wait You could measure the stock pipe, and see how it attaches and see if there is a similar size Slip on muffler (designed for another bike) to replace it...
Or just wait until a couple companies start making slip ons for it, from my trip to Daytona several manufacturers were gearign up to make parts for the R3T....