X Can - GSR 
xcangsr
X Can for the GSR

The GSR X-Can is the most complete exhaust system available for the
GSR40. The kit will allow you to plug one stinger and run the exhaust in
to the frame for a quiet operation while still improving on performance.
You can also run the two elbows and have the included silicone run under
the motor and out the back for clean operation.

You will notice great improvement on low end torque as well as increased
speeds. Actual MPH will depend on other modification to the motor and
gearing.