Tri-Y Headers for 69-72 GM Truck 265-400 SBC 1-5/8in Primary D371Y windshields featuring our bedrock solid

featuring our bedrock solid

25/8 V 1987 - 1988 Chevrolet V10 Suburban 4/8 V 1979 - 1993 GMC C2500 4

Add Edge's award-winning Insight monitor and control power levels through the monitor

Weight saving beehive spring design

Take command of your Ford Bronco like never before

Tri-Y Headers for 69-72 GM Truck 265-400 SBC 1-5/8in Primary D371Y windshields featuring our bedrock solidOverview: 69 72 GM Truck SBC Tri Y Silver Ctd 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