4.7L Short Tube Headers Silver Ceramic

The Doug Thorley THY-564LS-C headers are a performance upgrade for your 2003-2004 Toyota 4Runner or Lexus GX470 equipped with the 4.7L V8 engine (without air injection). Constructed from durable T304 stainless steel, these short tube headers feature a silver ceramic coating for enhanced corrosion resistance and a clean aesthetic. The primary tube diameter is 1-5/8 inches with 14-gauge tubing, and the collector diameter is 2-1/2 inches. They are American-made and backed by a limited lifetime warranty to the original purchaser. Installation notes indicate that factory hardware is intended to be reused. The CARB E.O. number for this product is D-540-7. These headers are specifically designed as a replacement for crack-prone factory manifolds, offering an economical way to improve performance.