Eurowise Performance Exhaust: Product LIFETIME WarrantyThe manufacturer warrants that all Eurowise Performance products are free from defects. Most of our products including exhausts* are warranted against blowouts and defects in material and workmanship for as long as the original purchaser owns the vehicle on which it was originally installed. The warranty is void if the product is not installed properly on the vehicle for which it is designed. This warranty does not apply to any product which has been installed on any commercial or off road racing vehicle or which has been improperly installed, altered, or subjected to misuse or damage from accidents. Also, cost of labor and any additional parts required to complete installation of a replacement muffler are not covered by this warranty. The warranty process requires the transaction to be a valid and authorized transaction, proof of purchase, MUST be presented to the service outlet from which you originally purchased the muffler/ participating dealer, when making a claim for replacement. The original product must also be returned and exchanged for a new muffler of the same part number. The manufacturer does not assume any responsibility for any consequential damages occasioned by the muffler, or inconvenience or interruption in any operation.