Is there a single side exhaust for a 2001 rc51??

Jardine makes a 2 into 1 exhaust.

Jardine makes a 2 into 1 exhaust.

thx, anyone know if this pipe robs power compared to the dual system?

Reportedly the 2-1 loses top end power.
I have the dyno results from my SP2 with the Jardine 2-1, but I haven't yet dyno'd my bike with my Alrapovic full race system.
It will be interesting to compare the two.

Interestingly, Arprilia went from a 2-1 to a 2-2 system on their newer models.

Sub has it backwards. You'll gain some up top and lose some midrange with the 2:1