HMF question

[cant400exbeatit]

my buddy just got a HMF pipe for his 400ex and we put it on the other day and when he fired it up......the pipe sounded nice, but it also sounded like something inside it was rattleing around.........anyone else ever hear of HMF pipes doing this.......kinda worried b/c i ordered one and it should be here any day......thanks guys

ride on.

[muddy400EX]

check all the bolts and make sure there tight and if they are it might just be the sound of it. i know mine sounds good:)

[yel400]

did yall have problems with the new header pipe hitting the clutch cable

[cant400exbeatit]

just got the slip-on

[meanyellow03ex]

No rattles here. It is a little raspy compared to stock..

[Kansas T]

Mine tends to rattle anything around the quad. Especially metal buildings:D