Need help picking pipes sparks or hmf

[416 racer]

hi guys i just got a yfz a couple weeks ago and i cant decide what exhuast system i want i would like to be able to do my slow wheelies like i did on my 400ex and every body telling me hmf is the why to go for that kind of stuff becuase it carries a whole lot more low end then sparks does please help me out with this if any of u guys have expreince with these pipes

Ps i love my yfz it so awsome.

[gotwarrior]

HMF is the way to go!!!:D

[igotgrapes450]

HMF, i just got mine last week on my new 2007, along with a kn air filter and fmf jets, felt a huge difference!!, the hmf also has a 2" hollow opening which means its loud!! sounds great, my friend with a 2005 yfz and GYTR exhaust is so jealous.

[exrider008]

HMF!!!

[440racer66]

hmf all the way i race mx and i wouldnt run anything elese if you start to race mx put spacer it away from the calipers