gk-13 250cc exhaust
 

i have a gk-13 stock everything. i have a used fmf exhaust off an old 250 motor. will this work on my buggy? if so, should i move up the jet size as well? what size? main and pilot? your help is appreciated

gk-13 exhaust
 

let me add that the gk-13 runs a 250cc motor.

step 1
 

If you can imagine it you can mod it, for the most part. The exhaust would just be one part of the puzzle though, If you're opening up the exhaust then you might as well open up the intake with some sort of aftermarket product or mod, and then jet and adjust carb accordingly. Anyone else want to chime in!?:dunno:

Not sure how restrictive your stock muffler is compared to the 150's. My guess would be it will increase perfromance a bit, but usually adds more noise as well.

Jetting will most likely need to be addressed for sure.

Sorry, i have no experience with the 250, so I can't suggest any jetting.