IDK the Decibals of the HMF but I do know with the quiet core(extra 35 bucks) it is quieter then my pipe. And my friend measured mine at 98 decibals, but that might not be totally accurate.
The mudsharks are awesome in mud and snow, but anywhere else....they SUCK!! On hardpack they spin like crazy.. My friend has holeshot xcr's and they hook up great, also razors are supposed to be nice, or razors 2 if you got the extra money....
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2002 Red 400ex- Renthal Handlebars, Full Skids, White Brothers E-series, Knarlys+douglass' on back, Holeshot XCTs+ITPs on front, DG Nerfs and Bumper, Ceet Gripper Seat Cover, Race Cut Front Fenders, Acerbis Handguards, Pro Design Kill Switch, Shockwears, K&N Air Filter/outerwear, Tinner Air Scoops,Cr Clutch Lever, Denton Steering Stabilizer
1998 KTM 300MXC
"Support your local ATV mechanic...Buy a Yamaha"
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