Just doing a QUICK 2 minute search on exriders (atvriders.com) it looks like a lot of guys use CT racing pipes on them. I'd look into it a little more though. I know of one guy who has had at least 3 KTM quads though, I will shoot him an email, he will probably know more.

 

i was more into the 2 strokes i had a banshee that had DMC alien pipes on it. goin down the road it sounded like a crotch rocket. it was bad *** but then i sold it next one is gonna be a RAZR

 

I'm in for dirt, mud and hills! I picked up an '06 Yamaha Kodiak 450 with less than 100hrs on it! It's quick enough with loads of thumb action and has been in some places where walking was dangerous to your health! I prefer it over larger machines since it falls into local tire track restrictions so I can ride anywhere but single track "dirt bike" trails. It also fits nicely in the box of the truck and I get to keep my tool box!

 

i ride a 98 yamaha blaster with a loud pipe its got a bigbore kit

 

I've got 2 4x4 atvs that I picked up a few years ago.
I wasn't looking for one, much less 2, but the deal was too good to pass up. They both have ~ 100 hrs on them. I got them from an older couple who had just upgraded to a Brute Force and a Grizz with power steering.
I had to move his Viper and a Harley VRod just to get them out of the garage. New batteries and a little gas and they were good to go.

The green one is a 2005 Honda Rincon 650.
The red one is a 2002 Honda Rubicon 500.







I'd love to mod them, but I'd love it more if I just had time to ride the dang things.

 

i have an 04 Arctic Cat 400 4x4 FIS

 

i would go with the HMF for price! I have a 06 YFZ450 that has a leggers frame, extended arms and axle, then the meat and potatos of it is the NGR racing motor. as for 4x4 dont ride mine much anymore but when i lived in AK i rode it a lot but it was a brute force 650 lifted with snorkles and 29.5 outlaws hi comp cams CDI along with a bunch of other things. Then i have a new outlaw 450MXR.

im not a big fan or the irs it is nice for trails but my friend has one and his suspension falls apart every ride and we are always fixing it