A buddy of mine just put a set of FMF Gnarly pipes and Power Core 2 silencers on his otherwise stock '06 Banshee. Any recomendations on safe jetting for him? Thanks.

 

If its at sea level with the lid off the box and an intake adapter\filter setup like pro design.....Id say 300 mains, 32.5 pilots......you could adjust the needles, although there are aftermarket needles available.

 

Sorry, we ride around 1,000 ft. and he left the air filter and airbox all stock and in tact. I think he said the pipes came with 260 mains and said to leave the neadles in the stock position. They did recomend changing the pilot jet but he said he doesn't want to bother. Is this setup going to give him any problems?

 

Try the 260s, see how it runs, check the plugs and go from there.