yobigd20
Well-Known Member
Interesting. Is the handling or grip better with the 21s? I'm primarily interested in performance, not comfort.
The stock 21s will have better performance than the stock 19s. But performance is more a factor of tire compound than tire size. By going aftermarket, there are many tires in 19s that will perform better than the stock 21s. The issues I refer to with 21s is the high tendency for them to blowout on potholes and damage the rims. If you search these threads you'll find a very high amount of owners switching from 21s to 19s. It's probably a combination of how heavy the car is on very very low profile tires on a rim that just is a little soft and bends. Regen probably doesn't help it either. They are very costly to repair. Expect $2k per rim+tire each time you blow one out. Some have blown both on the same side simultaneously when hitting a pothole. It's also occurred on those pavement type changes too. I know there's owners on here that have replaced 2-3 sets within a few months and just gave up on it bc of how expensive they were to replace. Also the treads don't last very long on them anyway so some owners weren't happy with replacing them every 7-10k miles anyway (which is the norm for these low profile performance tires). That's about $2k every 10k miles you drive. Search the threads and read all about it from other owners. If your ok with the cost and don't mind needing to be towed every now and then when you hit a pothole then by all means go for it. I'm sure theres one or two people here that would disagree with my assessment but certainly not the majority. I personally don't know anyone that's kept their 21s. Everyone I know around these parts in MD NJ PA NY etc all switched to 19s. And service centers around these parts are ALWAYS swamped with new owners' cars being towed in from blowouts on the 21s. Most of them didn't have a clue about it when they ordered and just maxed everything out. It only takes a few times before owners wise up and switch to the 19s.