that's the correct tire size to maintain close to stock rolling radius (about 611 mm) if you had 205 50 16's stock (which you should). If you really wanna dump it get 215 40 17's for a narrower tire. Just make sure you have a quality suspension set up and you should be able to slam it but beware - you'll need a quality coilover system like tein or even sleeve coilovers like ground control. DO NOT BUY EBAY COILOVERS! The adjustability isn't always as advertised. I know from experience...just my 2 cents. You'll also need to roll your fenders back with a Louisville slugger and get a camber kit if it's real low or you'll smoke your tires.