Exhaust length and jetting

[Hitndahedfred]

I really like the "F" pipes I made,,, got a lotta comments too but I wanna run some fishtails I think.
For me to run them to where I want,,, to match the lines of the hardtail,, I need to add about 8 inches or so.
No baffles,,,standard ID size,,
Does anyone think I will need to re-jet the VM34?

 

[grizld1]

Probably not, but test; any differences will be very minor. Added length should make for exhaust tuning that's more compatible with the power peak of the stock engine.