Tri-Y Headers for Olsmobile Motor Home 455 73-78 1-3/4in Primary D755Y-B street-strip-carbs Please refer to the Application

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Tri-Y Headers for Olsmobile Motor Home 455 73-78 1-3/4in Primary D755Y-B street-strip-carbs Please refer to the ApplicationOverview: Header Olds Mtr Hm 455 73 78 Blk Doug's is the pioneering force behind the popular TRI Y design for cars and trucks. The unique, shortend, paired primary tubes increase mid range torque without sacrificing top end power. TRI Y's are a great choice for daily drivers and heavy duty trucks looking to increase power from idle up to 4500 RPM while maintaining maximum fuel efficiency. Features: 3 8" thick machined flanges to prevent warping CNC