HMF for 2004 grizz

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May 24, 2004 | 06:05 PM

homeslicepasta8

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Weekend Warrior

Joined: Mar 2004

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HMF for 2004 grizz

Hello,
I'm getting a full hmf system for the grizz. Is it alot louder than stock? In terms of performance, does it increase it? in addition, can you remove the spark arrester?
Thanks

May 24, 2004 | 06:07 PM

warwgn

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Joined: Apr 2004

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HMF for 2004 grizz

yes,yes and you will need to change the jets for either one you do.

May 25, 2004 | 11:51 PM

Sparky660

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Joined: Jan 2004

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HMF for 2004 grizz

Yes the hmf full system is quite loud. I was told by hmf that it is around 102-104 db. Some time you don't have to rejet the grizz as most come running fairly rich to begin with.