ones that are very slight. An 1-1.5 inch is about as much as I like on a wide boy. I've seen the Strosek, Jacquemond, V12 ones.... and they are nice but much to aggresive for my taste. I like the addition to look like it belonged on the car from the factory rather than a later addition. But again the widebody kits on the market are nice... in my own personal experience I would just have the fenders cut... bent out... metal worked... then smoothed over.