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Features
Head Flange: 3/8"
Primary Tube Size: 1-7/8"
Collector Outlet Size: 3"
LS1, LS2, LS3, LS6, LS9 V8 Engines
Gains over 25+ rwhp
Fitment
67-74 GM Chassis With Gen III/IV Small Block Chevy V8 (LS1/LS6/LS2/LS3)

