jetting/exhaust

[jabby2478]

I have a 04 450es with the uni filter, hmf utility pipe, and 135 jet (i think).
If I swap back to the stock exhaust (noise reasons/hunting) do I have to change everything back as well or can I just change the muffler???


Next question: When I remove the pipe off the 450 for the stock one is there a possibility that it will work on my 01 350es? It needs more power and it only gets used around the farm so noise is not an issue.

thanks all!!

[Mike/HMF]

if you put the stock exhaust back on without changing back to the stock jet, you will end up with a rich condition and your machine will run poorly. Also your 450 pipe will not work on your 350.

[jabby2478]

ok thanks, was hoping to save a few bucks thats all.