04 800ho best bang for buck upgrades

[Furby]

i have an o4 800 ho with 1000 miles looking for more power but looking for the best bang for the buck please help

 

[GF2]

Put this in performance modified.

 

[NITROSKIDUDE]

Or in the Ski-doo informational section.

My opinion though is NOS for the bang / buck theory.

 

[bigbird]

One of the many Big Bores available.