Full Exhaust System RPM-67Racing Aluminum φ67×300 CB400SF VerR/S

【RPM 2619-01 Full Exhaust Muffler RPM-67Racing Aluminum φ67×300 CB400SF VerR/S Road Legal Rokunana Racing Motorcycle RPM】
■Product Description
The RPM-67Racing is an exhaust system born from painstaking handcrafting through approximately 300 processes and TQC (Total Quality Control). It was launched in 1998 as an original muffler brand, a replica model of the F-TYPE, without significant changes to the appearance of the RPM-4in2in1 F-TYPE manufactured until 1989, or to the internal structure of the silencer, which is crucial for sound quality.

■Detailed Description
●Exhaust Pipe
The 4-into-2-into-1 manifold system adopted offers a higher exhaust synergistic effect than a 4-into-1 system for 4-cylinder engines, and significantly contributes to producing a high-quality sound.
The material used is steel (STKM11A carbon steel pipes for machine structural purposes). Each component is meticulously polished by artisans and then undergoes high-quality plating to provide superior aesthetics and weather resistance.
●Silencer
The φ67×300 size silencer, which produces a unique and exhilarating racing sound, achieves maximum sound deadening with minimal exhaust resistance by having a completely double-layered internal structure.
Furthermore, its lightweight and compact body possesses high rigidity and excellent resistance to vibrations under harsh operating conditions.
●Silencer Outer Cover Lineup
The outer cover material is available in the following three types:
・Aluminum alloy A6063S
・Stainless steel SUS304 / mirror finish
・Titanium TP270
●Component Parts
This is a full exhaust system consisting of a total of five parts: "four front exhaust pipes (from the engine to the manifold)" and "one tail ASSY (from the manifold including the silencer)."
●Installation
It is secured to the vehicle at two points: the engine exhaust port and the tail stay.
When attaching to the engine exhaust port, use the free flange (exhaust holder) included with this product.
※Exhaust gaskets are not included, so you will need to prepare them separately.
●About Silencer Structure Requirements
The RPM-4in2in1 F-TYPE allowed for the removal of the inner silencer for race use or repair purposes. However, many users rode on public roads with the inner silencer removed, which went against the original intention. Therefore, RPM now welds the inner silencer in place.
※Sound volume adjustment and back pressure adjustment are not possible in the new factory-shipped state.

■Compatible Models
HONDA
CB400SF Ver.R (NC31)
CB400SF Ver.S (NC31)
※Not compatible with CB400SF STD

■Specifications
Silencer cover: Aluminum
Exhaust pipe: Steel plating
Fitting type: Full exhaust
Silencer size: φ67×300
Oil change: 〇
Oil filter change: ×
Tandem: 〇
Center stand: ×
Road legal: 〇
Proximity exhaust noise level: 99db

■Notes
※Only the muffler is for sale. The vehicle in the image is for installation reference.
※Images are for illustration purposes. Includes products of different sizes and colors.
※Product design and specifications are subject to change without notice. Please understand.
※This product is made-to-order, so cancellations after ordering are not possible.
※As this is a made-to-order product, it will take some time for delivery. Also, please note that the manufacturer may discontinue the product or change specifications without prior notice. Thank you for your understanding.