Please point me in the direction of a thread regarding this if there is one, I did search but couldn't see one.
C0 settings? I have a 2006 model.
Mine were C1 -5, C2 9. Upped them both to 20, but felt idle to 3000rpm was way too rich so went to C1 15, C2 29 keeping the ratio the same.
Were yours at -5, 9 from factory?
What did you change to and did it help smooth things out with aftermarket exhaust?