I have 18's on my 5th gen and they do cause a lot of trouble when it comes to dips and things like that. When i purchased the car it came with them so i never bothered. Just gotta be real careful thats all. The stares from everyone on the road is totally worth it though. The dents arent though.215/35/18, very low profile. If i had a choice i'd go with 17's or 16s depending on tire size.