hmf or sparks

[440bigborekit]

from what i here the hmf and curtis sparks exhausts are the best to buy for the 400ex i want all your opinions on which one is #1 for the 400ex

[jak1389]

all i have heard is great things about both besides them being loud, which isnt that great in some riding areas. i say flip a coin:blah:

[mckenzie016]

i run a HMF and i like it alot. i have never tried a sparks so i couldnt help you there but i have herd they are a good pipe also.

[mckenzie016]

i run a HMF and i like it alot. i have never tried a sparks so i couldnt help you there but i have herd they are a good pipe also.

[nowukno]

I have an hmf on my 450r and i love it , it is a little loud but i think it sounds better than any other pipe. It also has great performance gains.

[IAMFITZY]

I run an HMF and it hauls... Huge bottom end and mid gains.. Pulls hard and sounds bad ***...