Effective on purchase made on or after January 1, 2010, AFR warranties AFR aluminum cylinder head castings for the lifetime of the product with proof of purchase to the original purchaser. Additionally, valves, guides, valve seats, valve springs, retainers, locks, studs, guide plates, and valve seals are warranted for two years to the original purchaser with proof of purchase. When it has been determined, by AFR at its sole discretion, that the product does indeed have a warrantable problem from workmanship, materials, or an undetermined cause (mystery failure) AFR will repair or replace the casting at its option. This warranty doesn’t cover fitness for purpose and/or merchantability on any product sold by AFR. Non-AFR castings are covered by the manufacturer of that casting.
AFR warranties their composite intake manifold to be free of defects for a period of one year's time. When AFR determines at its sole discretion that the product does indeed have a warrantable problem from workmanship, material, or an undetermined cause AFR will repair or replace at no charge. This warranty does not cover fitness of purpose and/or merchantability on any products sold by AFR.