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Aeroflow 4 into 1 merge collectors are made out of T304 stainless steel that is durable enough to stand up to the elements and combine high flow and high velocity to increase and broaden an engines torque curve. The hand porting inside the collector ensures unrestricted, smooth exhaust flow to prevent power loss and excessive backpressure.
Inlets are all measured Inside Diameter enabling the tube to easily slip in.
Outlets are measured Outside Diameter enabling a butt weld or even the use of our V-Band Clamp Kits.