PLM B-Series Power Driven RF V2 4-1 Megaphone Collector Header B16/B18/B20

PLM Power Driven B-Series RMF Version 2 header features a true 4-1 merge collector, with a megaphone to create equal exhaust flow & delivers the best peak horsepower gains while utilizing a 1-piece design.  304 brushed stainless steel True 2.5 inch collector Megaphone with reverse cone Hand TIG welded A/C and P/S compatible (slim fans required) CNC machined manifold flange One year warranty 18 gauge, 304 stainless steel Includes OEM spec header gasket ($20+ value) Includes OEM spec donut gasket ($20+ value) One piece design Includes skid plate Half core radiator must be used Recommended for 1.8L-2.0L engine displacementsEXH