Flowtech Headers-Black,Steel,4-1

FLOWTECH I STANDARD FULL-LENGTH HEADERS, STEEL, BLACK, SET OF 2 -- For off road use - Not legal for use on public roads and highways; 1.5 in. tube diameter, 16-gauge tube wall thickness, 2.5 in. weld-on collector, standard head flange; All mounting hardware such as bolts, nuts, and premium gasket are included; 4-1 design; Round head port; These headers are precision-engineered and leak-tested to provide the maximum performance and fuel efficiency of your engine; Formed from specially selected 0.049 cold roll flash controlled tubing with high quality electrostatically-applied satin black paint finish; They feature Flowtech's exclusive, thick, and mandrel-formed power plenum collector; All ports are precisely fitted and finished with sturdy and leaf-proof o-ringed port seals; Must modify stock exhaust to retain catalytic converter; Application with oxygen sensor use reducer part number 10105; Heap pipe lubrication required; Will not fit angle plug heads; Requires Flowtech front frame mount for installation.