Hey, I just got done installing my full HMF exhaust to finally complete my mods (along with a Proflow and Dynojet kit) and this is how it feels........[img]i/expressions/face-icon-small-happy.gif[/img] this is me right here see.........[img]i/expressions/face-icon-small-happy.gif[/img]
NOW this thing feels like a RAPTOR! Time for me to go slap around some YFZs........[img]i/expressions/face-icon-small-happy.gif[/img]
Just kidding but it sure runs alot better now...............Peace!

 

Glad to hear ur happy with ur up grade i got the same set up on my raptor 350 it made a huge diffrence the HMF matched with the DYNO JETS and the PRO FLOW WORK WONDERS have you tried swapping the front sproket to a 12 tooth i know the 660 may not need no more bottom end but man its a great change i didnt lose that much top end either give it a try if you allready havent.~~~~~~~~GOOD RIDEING TO YOU

 

Glad to hear you like your upgrade!!! But dont get a 12 tooth, i got one and used it for a while, i was alll spin no go... gears felt soo short like 2-stroke short... and all the bike did was revvv out really fast and i dunno i didnt like it. Stay with 13 tooth. 660 and 350 VERY different, lol. Now why dont you get a pro-flow and ditch that lid for some MORE Ponies [img]i/expressions/face-icon-small-smile.gif[/img]

 

Thanks guys! Yeah, I already removed the lid and I'm running a Pro-Flo/K&N. Thats why it feels much faster now(it was totally stock). Haven't had much time on it yet cause I live in the city but I'll be riding today. The real test will come when I line up with the Preddys I ride with......................[img]i/expressions/face-icon-small-wink.gif[/img]

 

Hey everyone!...........I just got back from riding with the predators and it did really well...............[img]i/expressions/face-icon-small-smile.gif[/img]

...........OK, here's how it really went.....[img]i/expressions/face-icon-small-happy.gif[/img].......If you know what I mean.

 

HAHAHAHAHA AWESOME