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Weapon*R 4-2-1 Race Header Long Tube Design Maximum High RPM Exhaust Flow Stepped Tubing Design for Higher Torque Gains Ideal for all forms of Competition Racing Best for Vehicles with High Lift Cams and High RPM Rev Band 2.5" Collector for High Exhaust Flow Eliminates Catalytic Converter ( NOT 50 State Legal ) Designed with Extensive Research and Development on Weapon*R's Dynapack Dyno. OFFROAD USE ONLY NOT LEGAL FOR USE ON PUBLIC HIGHWAYS
Any modifications made to this item will void warranty. Ceramic coating this header will void warranty and may cause it to warp.
Makes 15.4Hp and 11.7TQ with JUST THE HEADER.
$493.75
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