About DC Sports Polished Stainless Steel Headers DC Sports headers are made of 100% T-304-stainless steel, including the flanges, eliminating any chance of rust.  Our DC Sports polished stainless-steel headers feature hand TIG welds at the flanges, and our brushed stainless-steel headers feature machine MIG welds at the flanges that foster a tooled, custom-fabricated look.
*  Every system is dyno-tested for maximum performance
    * Equal length primary piping ensures optimum tuning of systems for more power across rpm range
     * 100% 304 Stainless steel construction including the flanges (polished or brushed), or mild steel with ceramic coating
    
 * CNC mandrel bends with robotically-welded fittings deliver perfect fit
    
 * CNC-machined and threaded flanges and O-ring seals eliminate leaks
    
 * Equal length primary piping ensures optimum tuning of systems for more power across rpm range
    
 
 * 50 State Street Legal.  CARB EO # D-370-14
    
 * Includes comprehensive instructions and all necessary hardware
This Header pair fits the 2003-2006 Infiniti G35 and is part number: NHS4201