Whether you drive a four-door sedan, an SUV, or a performance car like a Nissan GT-R, if you love your vehicle, chances are you've added aftermarket parts (or at least considered doing so) to personalize it a bit. There's nothing wrong in this, more and more people are doing so every day, but you do need to be aware that some such parts may cause problems with your insurance.How Do I Avoid Insurance Issues?While some aftermarket modifications (or mods) are no big deal to insurers, others have the potential to cost you money, when the insurance company refuses to replace them after an accident, or voids your policy entirely.While it may be tempting simply not to tell your insurance company that you've modified your car, the...