DOUG THORLEY EXHAUST HEADERS FOR 1998- 2004 3.3L V6 NISSAN XTERRA AND FRONTIER AVAILABLE THROUGH RUGGED ROCKS, LLC FONTANA, Calif. – Not only will the new headers replace factory exhaust manifolds which are notorious for cracking and leaking, but by replacing the cracked manifold with these headers you will save some cash and increase performance.… Continue reading Rugged Rocks: Nissan Xterra & Frontier Headers by Doug Thorley