When you put bigger wheels on do you necessarily need bigger brakes? I think not but someone said that you do. I dont think they have that much of an effect. Any input is appreciated.

not really, if your just getting 17s or 18s then no. cross drilled rotors would look nice bihind the rim but u dont need bigger rotors or brakes. now if your getting 20s then yes you should get bigger rotors and brakes

I have 17's for summer, 15's for winter, so I didn't change the brakes. If you want to run 17's or 18's all year, you can put bigger brakes on, but you don't need to. Cross-drilled rotors would look better, and help you out, but aren't absolutely necessary. I'm going to get some as soon as this set of rotors warp, but in the same size as factory. Bigger wheels most likely will add some weight, making braking more difficult, so that is something to consider.

No u don't, I have 18's and before I got brembo rotors and 911 brake pads I had stock rotors and brakes and they worked just fine.

You should be ok, but don't plan on keeping your original size brakes and rotors. Since you're getting bigger wheels, you might as well get bigger brakes though. You'll decrease your stopping distance, and since you'd be changing them you have an excuse :D to get cross-drilled rotors.

think u can fit 20's on a alero?

yea, gotta do some moving of the suspension but yea. lol

an easy alternative to new rotots, calipers, pads, etc is braided stainless steel brake lines. this is definitely on my to-do list for the spring because the rubber hoses that brake fluid travels through can expand and contract, making braking inconsistent. braided stainless steel lines do not expand. i think pfyc.com has em.