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The operating range is 50 - 700C
The fresh air duct is specifically designed to channel cold air in from the bumper cut-out into the factory air box
The extreme heat of the coolant and engine bay also reduce the strength of the hoses
The stock Honda thermostat opens when the water temperature reaches 88C
and rotation through engine dyno
Spoon 421 Exhaust Manifold - (EK9/DC2/DB8) FL5 The operating range is 50The 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 For best results we recommend
