how do i put an aftermarket exhaust with a new header and rejett it for my raptor 660...

 

Not to sound like a ***,but take it to someone that knows what they r doing,jetting is a pain in the but,it isnt as easy as it seams

 

If you are even half way mechanical, it is pretty simple to just unbolt the old header and muffler, and put the new one on like you took the stocker off.

As far as jetting, if you have to ask, you don't have enough experience to even attempt it (your Raptor has 2 carbs and is a b**** to mess with). Have it done by a pro!

 

I've done jet changes on my banshee and the raptor I use to have.The banshee is a extremely easy compared to the raptor.I found on the raptor,it makes things simpler to remove the front plastic when rejetting.It gets stuff out of your way.