can you put 20 in rims on an 08 scion xb

Yes if you must.

l would not think so and if they manage to fit l think they would have problems steering to the right or left... they'd also be too heavy and you will drastically reduce your MPG since you would need to accelerate more because of their weight....

No because they do not make a 08 XB . It is a XD and no. besides voiding warranty you will have a terrible riding box with no turning radius or safe footprint.

Sure, but you wo not like the ride. Look for used rims on Scion sites. Many people who go the dub route eventually tire of the ride and switch to something smaller.

You also run the risk of having your ride stolen and trashed just for the rims. See. http://scionlife.com/forums/viewtopic.php?t=229910&sid=98188e9db91a0d918c78a080ed8b69e3

yes

Yes you may need to lift the car. Those are big

According to the website, the biggest rim that u should put on is a 19'' rim. with low profile tires, but my guess is that u could probably get some 20 is on there if it is not like lowered. best bet is to slap some on there & check that they do not knock into things when u turn & stuff.

and they do make an 08 xb... lordy...
they have an xb from 04 to now, they discontinued the xa.

and tires should not void the warranty... because that would be really lame.

You can, but l wouldn't. l would not go any bigger then 19 or 18''. with only one or 2 inches of rubber, unless the roads where you live a perfect like in California, one pothole in the road and your done, especially if they are aluminum. Get steel. Weight is not an issue because it is unsprung weight and does not absorb the cars torque.

Yes, you can. Despite what other people say, l think it'd give your car more personality and make it stand out among the crowd. You do not see too many xb is out there with some 20 inch rims on them. It'd really stand out if you put some dubs on there, but that might not look well.