Except turbochargers, fueling and electrical parts, CTS Turbo products are all convered by a 1 year manufacturer defect warranty that begins on the date of purchase. Turbochargers have a 6 months warranty and electrical / fueling components are totally exclude of the CTS Turbo warranty policy. Warranty doesn't cover abuse, physical damage, incorrect installation or misuse of a product. Warranty covers exclusively repairs or replacement of failed parts, at manufacturer's discretion. No refund or credit are allowed.