Modifying your vehicle might seem like something cool, but as laws change, your custom truck might actually be dangerous. Several popular modifications are being flagged by state troopers and federal regulators as “unsafe equipment.” These are common upgrades found on work trucks, off-road rigs, and even daily drivers. With new FMCSA and NHTSA safety proposals gaining traction, some states are already cracking down. Here are six mods that you should be aware of.
