CB400F Muffler 4in2in1 CB400F (1974- / Yon-Foa)

【RPM CB400F Muffler 4in2in1 CB400F (74-/Yonfoa) RPM 2055S】
EX-P: Steel Silencer Outer Cover: SUS Compatible models: HONDA CB400F
Compatible model/year: '74-
Fitting type: Full exhaust
Silencer size: φ67×300
Oil change: ○
Oil filter change: ×
Tandem: ○
Public road use: ○
Proximity exhaust noise value: 90db The exhaust pipe from the engine exhaust port to just before the silencer is made of steel.
The exhaust pipes, carefully polished by craftsmen through dozens of steps, are first copper-plated, then nickel-plated, and finally hard chrome-plated.
This creates a luster unique to steel plating, and as heat from the exhaust is applied, it changes into a unique burnt color.
In addition, the exhaust note produced by steel has a distinctive, high-quality sound.
The "4in2in1 manifold," created using a unique manufacturing method, has been conceived for a long time.
The adoption of this manifold system has achieved reliable high torque characteristics in the mid to low speed range.
This is a full exhaust muffler that produces an exhilarating racing sound while keeping the volume within regulated limits.
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