You can use aftermarket a-arms and an aftermarket axle to widen it. Or you can use spacers. QM actually runs a kit that moves your mounting point out instead of replacing the arms (I believe?) that's pretty cool.Okay, How would I go about widening it, and improving the shocks, I dont have an extremly small budget, But i dont have a ton of money, Just anything better than stock? What would you recommend. And what does replacing the jetting exactly mean? And what does an Anti-Vibe stem do? I would really appreciate if you could help me out with those questions, Thank you.
Improving the shocks on a 660 basically means replacing them. Aftermarket shocks are great, but YFZ450 shocks are a good budget shock setup ($175+/-) that require minimal modifications to the stock arms. There are many threads, including a sticky on this.
I run a g-force extended/adjustable axle i got from Tech Quad Shop for about $200. I've been very happy with it.
'Jetting' is referring to your carbs. You'll want to make sure the proper size jets (main jets and pilot jets) for your modifications/etc. Along with changing out jets, there are some other things to be done to setup your carbs properly. Check the 'Carbs 101' thread that's stickied :thumbsup: