B-Series B16 B18 B20 2.5 Collector Stainless Steel Exhaust Manifold 4-1 for Honda Civic Acura Integra Racing Seats The 32 clicks of valving

B-Series B16 B18 B20 2.5 Collector Stainless Steel Exhaust Manifold 4-1 for Honda Civic Acura Integra Racing Seats The 32 clicks of valvingRMF 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 Includes OEM spec donut

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