Sport Header Set 991.1 / 991.2 GT3 / RS - Brombacher Edition - 200 Cell HJS Tri-Metallic Cats

- + 20 crank hp & + 14 crank torque. - 200 Cell HJS Tri-Metallic "HD" Cats. - 2 tubing (50 mm) with Motorsport merge collector. - Weighs 18.5 lbs. (8.4 Kg). - 1.5 lb (9.1 Kg) saving's over OEM header. - German V2A - X5CrNi18-10 - 1.4301 stainless steel for improved durability. - Works with OEM sealing rings and clamps. See below for part numbers. - Made in Germany. - Reduces thermal load and backpressure to for more torque in the mid-range and Hp on the top end. Be sure to add new clamps and sealing rings to your order. 2 Qty. clamps are needed, they are part # 99711133690 and 2 Qty. sealing rings are needed, they are part # 98011156100. Our latest development for the GT3 is aimed at those who are looking for more torque in the mid-range, a rich, deep exhaust growl. These headers contain the latest HJS cats, they are nicknamed "HD" for high durability matrix design catalytic converters. They have a SM-matrix (winding of three flat and corrugated foils) and a special connection to the matrix sheath, which equates to extremely high durability for track and street use. They work seamlessly with the OEM side mufflers and generate up to 15 (11kw) crank hp and 13 (18NM) crank torque._x000B__x000B_This item may need to be sourced from Germany and would take 2-4 weeks to arrive. Once ordered it cannot be canceled. Please call to check stock or request expedited shipping.