-Vehicle : Honda Civic/Integra
-Model : EK4/EK9/DC2/DB8
-Engine Type : B16B/B18C
-Brand : Spoon Sports
-Product Name : 421 Exhaust Manifold
-Item Number : 18101-EK9-000
The Spoon 4-2-1 header is designed to provide the maximum balance between peak power and torque.
To develop this header, Spoon tested all possible combinations of pipe diameter, length, bends, and rotation through engine dyno, flow bench, and driving/circuit tests. The result was an extremely lightweight header (6.8kg) with substantial peak and mid-range power gains. Weight saving 50% over the OEM manifold of 11.5