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It all depends upon where the rock releases from the sticky tires.
You can assume that rocks are going to be released from every possible spot on the tire except the very bottom. Whether it hits the side of car is solely a function of the geometry of the body panel and its relation to the front tire.
Proof front splash guards give little protection. Maybe behind front wheel but no protection to area in front of rear wheels. '16 Z51, 18,000 miles. No dirt or gravel roads. All paved highways and Interstates. Splash guards installed when car was brand spanking new.
Fortunately area covered in Xpel which appears to have taken most the beating. Skirts may be the only salvation, once Xpel replaced.
It all depends upon where the rock releases from the sticky tires.
You can assume that rocks are going to be released from every possible spot on the tire except the very bottom. Whether it hits the side of car is solely a function of the geometry of the body panel and its relation to the front tire.
Yes, I said they do help, not that they offer complete protection. Geometrically speaking, they greatly reduce the target arc to the lower level of that rear rocker fender flare, significantly reducing the probability of a strike.
It's just my preference, but I'd rather replace that small amount of XPEL every couple of years rather than install skirts, which I dislike.
