fmf factory 4 and the 4.1. Well really no difference the 4.1 is just a up grade, different style,better built and gives alittle more power, just like the raptor 660 to the new 700r.Both pipes will forsure give you power gains in the power band and overall house power, you should rejet your quad though so your motor can compensate the all around gains. Theres a price difference also,you can probably get some deals over the web. later.

 

it says that the 4.1 meets sound requirements for ama. i want something loud so im thinkin about the factory 4.

 

are you planning on racing? loud pipes does"nt mean more power.....well not really.Reason i ask is because if your not(racing)and you have loud pipes DNR will stop you sooner or later on the trails.If your racing then your allowed loud pipes or what ever.Yeah check out that pipe sounds like a nice one i have yet to do any thing to my quad, on tuesday i"m taking it in for a break-in service and see if my tires came in.My next mod will be a pipe also.Let me know how that FMF works out for you.....later james.

 

if ur planing on racing i was reading that this year the sound level has 2 be below 102 decimals and they want to bring it down 2 99 decimals but i was just talking to a guy and said only a couple places check...... in michigan eny way i dont no where yall are from but id look into it

 

well im from louisiana and i never even herd of anyone gettin into any trouble cas of loud pipes. but yea im goin to get the factory 4 cas the power and noise. ill let you know how it works out.

 

Yes it's a deal. That's a brand new bike & I really don't think you'll find it elsewhere for a cheaper price. I'd ditch those spacers & if really need that extra width in the back Rockymountainatv will ship you a+2 axle for $200. Go with a full exhaust for max power vs just a slip on. I rode a Rappy myself & had lots of torque I can't imagine it with more power. Sparks makes an exhaust to make your bike sound like a chopper. If you want to add bling on that pipe you can go with HMF for an addiotional 12hp. You don't need all this stuff to have a great time on a nice bike. Just grab it for that nice price!

 

Thanks, I did buy it for $5,000 cash with the full GYTR exhaust and header, air filter, cobra efi programmer, shock covers, a arm and rear skid plates, and helmet/goggles that match the 50th ann. graphics. I did already remove all the spacers. It turns much better/shaper. I also just ordered a srp steering stabilizer. Thanks again for all the replies.
Dave

 

Oh yeah! DNR are like cops but the only difference is their around lakes and atv trails.Im from minnesota (north) and if your near towns,state forest or just about any where and your pipe sounds like a harley they will ticket you.Some guys get away with it,but thats why atvs dont have places to ride now, people complane.Trust me if i can get aloud pipe and get away with it or have a place to ride a loud quad, i would but i enjoy the sport any respect peoples right to enjoy the out doors just like i do. later james

 

i was thinking a lrd exaust but i want a fmf factory 4, which should i get???

 

well if the dnr turn there lights on just dont stop they either got a truck or a 4 wheel drive quad u proply get away pretty easy