Wheels size shouldn't matter as long as you have the correct tire size (for 17" wheel that would be 215/40/17) to match the original 15" OEM tire so your speedo reads correctly. The key is staying close.
Did you figure out what brand springs she had. They looked like about 2"s of drop on that xA.

 

Gotcha, my speedo is ALMOST exact lol, at 60 it's like 1 off. Oh well. Yeah they are AG springs, they claimed 1.6 in the front and 2 in the rear, my Sprints claim 2 all the way around, but I question it cause I don't seem that low, maybe I'm just seein things.

My SportMaxx rims made me lower, but also threw my speedo off hardcore, I didn't care for that part, but I did like the stance I was getting. I would like to get back to that height but without the wheel rub and speedo problems.

 

i think the tire size does count on how low you get. cuz before i was lowered on df210s on 17's, tire size was like 205/40/17 and i was high off the ground, barely any scraping at all.

then i changed to stockies, and i kinda started to scrape,
now im on my sportmax 195/45/15..and i scrape on pretty much all driveways that i never scraped on before.

 

Exactly right! The size tires on the stock wheels were way too short, 2.6 inches to be exact. They should have been stock size of 185/60/15. It made you exactly 1.3" shorter according to this calculator. http://www.rims-n-tires.com/rt_specs.jsp?postId=906

It's truely funny what tire size combos wheel places will mount.

 

oh, thats kinda neat..wel i dont mind i like being and looking lower lol

 

Yeah, but the ride must be awfull rough. Almost if not as bad as 18"s.

It would almost look like mini spares on all 4 corners.

You would have much better acceleration tho with the gearing change.