My origin wide fenders front and rear fit very well, It depends on where you get them also, some companies will send you junk and say it's origin or another high end company, it's important to check your stuff, most real aero product will have a marking on it somewhere, i.e the bunny on origin product. I buy all my aero from Darren at Intense Motorsports, he checks my stuff to make sure it's on point. Just about all overfenders you buy will leave about an inch or more clearance to mold the fenders in, as previously stated, not everyone likes the rivet look. One more thing, I have found it a common problem on s chassis cars that aftermarket front fenders have trouble matching bodylines due to the position of the metal around the pinch weld, the two mounting ponts on the pinch weld are crucial to fitment, and I find that often cars are jacked/lifted improperly and the metal gets mashed upwards, changing the location of the pinch weld fender mounting points. Several times i have pulled the sheetmetal back to it's original position and re-installed the fenders, finding the body lines match perfectly. Just something else to check. I hope this helps someone.
-chris