Tri-Y Headers for Olsmobile Motor Home 455 73-78 1-3/4in Primary D755Y-B street-strip-carbs 3L V8 1972 - 1976

3L V8 1972 - 1976 Chrysler Newport Custom 400/6

4L V8 1970-1971 Pontiac GTO The Judge 455/7

4 V8 1972 - 1974 Mercury Monterey 460/7

2L/L4 2002 - 2005 Hyundai Sonata 2

Tri-Y Headers for Olsmobile Motor Home 455 73-78 1-3/4in Primary D755Y-B street-strip-carbs 3L V8 1972 - 1976Overview: 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