They cannot void your warrenty unless your upgrades caused the problem. They have to prove this to you. For example, if your windows do not work, they have to fix that if your car is under warrenty. However, if you have engine problems, they will probably blame you for your upgrades but they have to prove it.
A forum community dedicated to Honda and Acura owners and enthusiasts. Come join the discussion about performance, modifications, concepts, reviews, classifieds, troubleshooting, maintenance, and more!