DC Sports AHC6606 Acura Integra RS/LS/GS 4-1 Header with Ceramic Coating, Silver Dyno tuned and tested against the competition for maximum performance CAD-rendered, race-inspired, 4-into-1 design emphasizes top end power for road racing applications Durable T409 stainless steel with ceramic coating CNC mandrel bends with robotically-welded fittings deliver perfect fit