I have the OEM rims right now but want to buy some used TSX rims and put them on my car, but the problem is the tires on those rims are 215 50 17 and my OEM is 225 50 17... Will it be a problem?

You may need to go with 225 45 17. This will keep the same hight of the wheel from top to bottom. I am going to do the same thing when my tires wearout. :wave:

Good article re tire size at link.
http://www.canadiandriver.com/articles/jk/tire-terminology.php

To answer your question... 225/50-17 will fit, no problemo.

If you want to compare the two sizes, here's a site that you can do it at:

http://www.rims-n-tires.com/rt_specs.jsp;jsessionid=F863F34D4E504504AB2E83C3B7 409E8D?item=Wheel-Tire%20size%20comparer&showRim1=1&showTire1=1&sw1=215&ar1=45&bd1=17&rd1=17&rw1=7.0&et1=45&showRim2=1&showTire2=1&sw2=225&ar2=45&bd2=17&rd2=17&rw2=7.0&et2=40&text1=Scion%20tC%20stock&text2=

i know this is an old thread but I figured I would add what I read on the TSX forums. I currently have used TSX rims on my car so that is where my interest lies. Anyway the guy on the TSX forum does not recommend 225-50-17s, instead he recommends 225-45-17s. I know the tsx comes from factory with 225-45-17s or the majority 215-50-17s.

may i add i like the tsx rims on the 7 gen a lot more than tl rims..