Flowmaster American Thunder Header-Back Exhaust System - 2-1/2 in Diameter - Dual Rear Exit - 3 in Polished Tips - Ford Mustang 1967-70 Sealed Power Includes +15 PSI higher pressure

Includes +15 PSI higher pressure relief spring installed and optional standard pressure relief spring

Die-cast aluminum lid construction

Nook began commercially manufacturing and distributing the world's first Battery Corrosion Preventative which he called NCP2

Part Number: 12-425

Flowmaster American Thunder Header-Back Exhaust System - 2-1/2 in Diameter - Dual Rear Exit - 3 in Polished Tips - Ford Mustang 1967-70 Sealed Power Includes +15 PSI higher pressureFlowmaster's 16 gauge mandrel bent pipe kits are designed to fit perfectly onto your vehicle with all the quality and performance that you would expect from Flowmaster. Features: Mandrel Bent 16 Gauge Aluminized Tubing 3 Year Limited Warranty Aggressive And Powerful Exterior Exhaust Tone Includes Hangers and Hardware For Easy Installation Header Back System Dual Out Rear Exit Dyno Tuned for Maximum Performance Vehicle Applications: 1967 1970 Ford