Wow! these little thing will do alot more for your car than you would think. Not only do they replace those cheapo plastic ones that the xmods come with! The only reason xmods had to use those is to keep the price down low! These are cheap, and are high quality! I love these! They never crack because they are aluminum, unlike the stock ones! Also they are very hard to get off, which is good and bad. The good is that they never ever fall off wile driving, and the bad is that the xmod lug wrench usually wont unscrew them with out skipping, or spinning. I recomend getting a precision wrench set. ( yah know the really small wrenches that come in a pouch!) They work amazingly once u find the right size! They also have a locking nylon ring that helps them stay on your axle. These screw on alot farther than the xmod plastic lugs. To get the plastic lugs to go all the way down, you would have to make the axle pop out the middle of the lug, posing a possiblity of cracking the lug. This would really shorten its life span. I recoment these with aluminum wheels as they blend with them nicely. I recomend these to anyone who like to drive their xmod, especually those of you with high powered motors, or anyone who runs on tight tracks. Thanks rcmart!