[Schmitthead]

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.

 

[methyman]

Is it a slip on or a full pipe with header and muffler?

 

[Schmitthead]

i got the whole system.

 

[frank5o]

Schmitt That system sucks!!! Ha ha Just kidding...... Nice site.... good luck!

Later, Frank

 

[HMFer]

Whaddaya mean by that Frank?

Joe/HMF

 

[frank5o]

Ah.... nothin it was a Joke.

 

[HMFSupport]

Looks like this is going to be a great site. We at HMF are looking to sponsor this forum and inform 450R members as much as posible. Thanks for having us and looking forward to being a part of the 450R action!

Kevin/HMF

 

[sjw1176]

i am going with the sparks full system,

 

[Schmitthead]

I just got it in the mail. I am going to install right now.

 

[Schmitthead]

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.

 

[TrX450rKiD]

Sharp looking pipe B)

 

[Schmitthead]

Thanx man, I haven't had a real chance to open her up but when I do I will post an indepth review.

 

[TRX450rlude]

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..... Nice and smooth

 

[Schmitthead]

I mean with the HMF installed.

 

[TRX450rlude]

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

 

[Schmitthead]

I wish I could of been riding but its been raing for 4 days.

 

[TRX450rlude]

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

 

[WhiteZee]

was there much difference between the hmf header pipe and the stock pipe? i know on the yfz it is pretty much pointless to pay the extra money for the header pipe, when you get such a small gain.

 

[Schmitthead]

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

 

[M3zy6]

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