what else can i do?

you could do a cam and piston upgrade, it isnt very expensive..check out ebay they'll have some of the best prices

Once you get past the point your at the HP to $ ratio starts a steep decline.
Contact Coalshedracing on here. He has done some combo's that arent terribly expensive and worked very well. I reccomend a stage2 hotcams roughly 149$ and springs 150$ or so. A wiesco 11:1 is a great piston and the least expensive to boot. Anymore extreme mods your looking at replacing atleast the rod. I consider the stock rod borderline with anything other than a pipe.

how much midrange do u actually lose from stage 2 over stage 1? i do mostly trail riding and some desert riding.

None imo if you go with a piston to. If you dont want to remove the head and cylinder the stage 1 is a drop in.It is a little gain. Dont expect the same gains you saw with the exhaust but it does gain some. Eventually most people end up upgrading to the stage 2 and piston at a minimum.

which springs should i get, kibblewhite? and with the 11:1 piston, it is still safe to run 93 octane?

papis_18 said:

which springs should i get, kibblewhite? and with the 11:1 piston, it is still safe to run 93 octane?

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Kibblewhite work great

11:1 will run fine on premium pump gas