Doug Thorley Headers THY-470-L-C Long Tube Exhaust Header for Nissan Xterra/Frontier/Pathfinder 4.0L Reviewhttp://tinyurl.com/of652a8 Doug Thorley Headers THY-470-L-C Long Tube Exhaust Header for Nissan Xterra/Frontier/Pathfinder 4.0L Made in the USALimited lifetime warrantyExtra thick 14GA tubing and 3/8 inch thick flangesCeramic coated inside and outKit includes all required gaskets and/or installation hardware