Flowmaster American Thunder Header-Back Exhaust System - 2-1/2 in Tailpipe - GM Fullsize Truck 1963-66 1128604 Seat back is double crossbroke

Seat back is double crossbroke for added strength and safety

Works With 12 Volt Systems

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AQP Socketless Hose

Easy DIY Installation

Flowmaster American Thunder Header-Back Exhaust System - 2-1/2 in Tailpipe - GM Fullsize Truck 1963-66 1128604 Seat back is double crossbrokeFits Both Long And Short WheelbasesDoes Not Fit Trucks with Torsion Bar Front Suspension or X Frames 2. 5 Inch Mandrel Bent Tubing Improves Exhaust Flow for Better Performance Super 44 Series Mufflers Give You a Deep, Classic Muscle Truck Sound H Pipe Style Crossover Pipe Improves Performance and Reduces Interior Sound Includes all Necessary Hangers and Hardware for an at Home Installation 409 Stainless Steel Construction adds Corrosion Resistance and