I Got A 94 Cord Wit 18's. I Didnt Have To Modify Anything In Order For Them To Fit.the Correct Size Tire For Your Car Is 225/40/18. If You Plan On Dropping It Real Low, You Should Put 215/35/18. The Rims Should Not Be Bigger Than 18x7.5 Or You Will Have Problems.i Have Been Ridin My 18's For 2 Years With No Problems.just Watch Potholes.