Gibson Headers Gibson Performance-Natural,Stainless steel,4-1

GIBSON PERFORMANCE HEADERS, 409L STAINLESS STEEL, NATURAL FINISH, SET OF 2 -- 49-state legal; Not for sale or use in California; Cannot be shipped to California addresses; 1.5 in. tube diameter, 16-gauge tube wall thickness, stock flange connector, 0.375 in. standard head flange; Premium gasket and installation hardware included; Shorty style; Round head port; Direct fit bolt-on replacement for factory exhaust manifold; Made of high quality 409L stainless steel mandrel-bent tubing to maintain constant exhaust flow for outstanding performance; They feature heavy duty 0.375 in. thick laser cut port flanges and OEM style connections; They attach to OE crossover pipe; Dyno-tuned and engineered to deliver more usable horsepower and torque; These headers increase the engine's efficiency by allowing it to breathe easier and run at cooler temperature; Well suited for lowered and raised vehicles, street, and off-road; Dyno tested to perform best with Gibson's cat-back exhaust system; Will not fit if vehicle has dual air fitting; Will not fit on old body style; For vehicles without air injection.