Edelbrock Corporation products are covered by a general warranty that states that their products will be free from defects in materials and workmanship. The length of this warranty is as follows: Performer series carburetors and Race Division products (90 days), remanufactured carburetors (30 days), Tubular Exhaust Systems and Thunder Series AVS Carburetors (one year), stainless steel exhaust systems (five years), RPM series mufflers/cat-back exhaust systems and IAS strut and shock absorbers (one year warranty; finish and shock boots are not covered), and crate engines (2 years or 24,000 miles, whichever comes first). All warranties are based on the assumption that the product(s) were properly installed, subjected to normal use and service, and that they have not been modified, neglected, or used on racing or competition applications. The warranty covers only the product itself, and not the cost of installation and removal. Edelbrock's warranty card must be completed and received by Edelbrock no later than 30 days from the purchase date to validate the warranty. Cylinder heads must be returned to Edelbrock for inspection before any refund or exchange will be done.