Greetings to all , I have owned my R9T two weeks now and having never sa on it prior to purchasing it i was amazed at how good a package it is .
Keen to make it "mine" out came the exhaust baffles and next on the sights was the exhaust flapper valve , this was duly removed and replaced with a plain piece of stainless tube, 60.5 OD x 75mm long do not purchase the commercially available part that costs £35 ( $50) just go to your local exhaust specialist and purchase an off cut. Mine was free in fact .
Having already removed the flap valve on my hP2 Sport and a GS1200 I know that it does not make any massive improvement on performance however the exhaust "crackle" on over run is to die for especially if you keep throttle off the stop a bit so some fuel is being dragged in.
Performance wise it does remove the slight dip in power/TQ between 2600-4000 rpm .
No warning lights come on the connector to the motor is simply taped up and hidden out of sight .
Next is to get rid of the KAT, this I will do by fitting Akropovic headers feon an twin can 1200GS ( yes they fit I already tried the ones of my mates GS).
It is not about performance gain it is just the noise ....
Happy riding ...