Weapon-R 4-2-1 Race Headers Features: 

• 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 Devlopement on Weapon-R's Dynapack Dyno.

Offroad use only. Not legal for use on public roadways. Weapon-R Check Engine Light Eliminator is reccommended for use with these race headers

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