Hmf Loudness

[397ccEX]

I want more power for my 400ex i just got new holeshots and i need more power
My parents say if i get the hmf and its too loud i cant ride it at the house is the hmf pipe w/ quiet core so loud that it will piss my parents off

[JDiablo]

without the quite core it is from 104-106...with it is from 96-98 DB's,hope that helps

[2001-400ex'er]

I have the quiet core and it isnt very loud, it still is alot thoatier and louder than stock, without the quiet core it is VERY loud but sounds awesome.

[LazeR]

without the quiet core its hella loud....my dad said it sounds like im riding right next to him, when im in my lil acre riding area lol.....with the quiet core though it helps a lot. It shouldn't bother your parents with the quiet core

[tdsongster]

Is the quite core removable from the HMF? In other words can you take in on or off as you like? Does using the quite core require jetting changes?

Thanks...

[devildriver422]

which would be louder a yoshi rs-3 slip-on or a hmf with quiet core

[JDiablo]

Originally posted by tdsongster
Is the quite core removable from the HMF? In other words can you take in on or off as you like? Does using the quite core require jetting changes?

Thanks...

yup

[397ccEX]

From what i hear you do not need to rejet from quietcore to without core!
How are the powergains?
And with the quietcore is it loud where people can be close to it without earplugs

[muddy400EX]

Originally posted by 397ccEX
From what i hear you do not need to rejet from quietcore to without core!
How are the powergains?
And with the quietcore is it loud where people can be close to it without earplugs



it isnt that loud without the quiet core:huh it sounds very awesome.