I put them on my 2012 about 24,000 miles ago. I have had no problems. Tires have been off probably 15 times so far. I don't remember the name of the company.

 

That's good to know. I don't know the name either, but business selling then had a bunch listed. Just didn't wanna get stuck with POS spacers.

 

I would say more then half of the spacers are machined in china, that is not necessarily a bad thing, all start out of a block of aluminum and machined and studs added. I've seen many people run them and have no problem. They used to be a lot more back in the day, but now they can be had for $40-$50 a pair at lots of places.

 

Not sure where I got them but I had a set on a raptor I had, no issues there. I think I had a set on a 600 grizzly, and again no issues. Both sets where off evilbay, so nothing special. Guess that answers my question!!!!

 

I bought these Kimpex off amazon. they work well on the front of my 2008 800 Outty. Needed some clearance on the tie rod ends with some bigger tires..
search for kimpex 194005
they are $67.49 but fit well and give you the extra width you need to clear the tie rod ends..

 

be prepared to get more muddy,
bringing your tires out throws more mud past the fenders unless you have flares.

 

these are for stock rims, and I have over fenders. Even an inch spacer with 29.5 laws barely has anything sticking out past the fenders. The ITP/growlers stick out more than these do.