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Discussion Starter #1
Well I ordered my hmf exhaust today. It comes with the 155 main jet, and its the brushed aluminum round pipe. I will post picks of installation. It should be here thurs. or fri.
 

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Discussion Starter #10
This is what it looks like with the plastics removed.

here it is with no pipe

here is the header

the new header installed

the whole exhaust installed.

and this is my homemade hrc lid.
 

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What, you still havent had a chance to open her up yet....Mine is stock rightnow but its broke in and has been opened up..... :D Nice and smooth
 

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I know what you meant...but that was like 3 days ago....HAHA
 

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:( that sucks so bad....the last 4 or 5 times I have been riding has been nothing but mud...that sucks :( ther is this place where I ride however that is nothing but a huge mulch bed. The mulch is always hot so the snow melts on it really fast and you get alot of traction....thats where I was seeing how good this thing really runs....its so easy to get sideways with this thing
 

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Discussion Starter #19
the slip-on adds with airbox lid on-

bottom 4 hp
mid 4hp
top 2hp

torque
bottom 7 ftlbs
mid 7 ftlbs
peak 4 ftlbs

the full system without airrbox-

bottom 7hp
mid 7hp
top 4hp

torque
bottom 13 ftlbs
mid 8 ftlbs
peak 7ftlbs

hope this helps
 

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if I remember correctly the HMF header has a tighter bend in it than the stock one.
 
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