Full Exhaust Muffler RPM-67Racing Titanium φ67x300 CB400F

【RPM 2655Y-01 Full Exhaust System RPM-67Racing Titanium φ67×300 CB400F Road Legal 67 Racing Motorcycle RPM】
■Product Description
RPM-67Racing is an exhaust system born from meticulous handmade processes spanning approximately 300 steps and TQC (Total Quality Control). It is an original muffler brand launched in 1998 as a replica model of the F-TYPE, maintaining the external appearance and the essential internal structure of the silencer, which defines its sound quality, from the RPM-4in2in1 F-TYPE that was manufactured until 1989.

■Detailed Description
●Exhaust Pipe
The adopted 4-in-2-in-1 manifold system offers higher exhaust synergy than a 4-in-1 system for 4-cylinder engines and significantly contributes to producing a high-quality sound.
The material used is steel (STKM11A mechanical structure carbon steel pipe). Each component is carefully polished by skilled craftsmen before undergoing a high-quality plating treatment, giving it excellent aesthetic appeal and weather resistance.
●Silencer
The φ67×300 silencer achieves maximum sound dampening with minimal exhaust resistance by having a complete double-layer internal structure.
Furthermore, its lightweight and compact body possesses high rigidity, offering excellent resistance to vibrations under harsh operating conditions, and creates a beautiful overall silhouette when mounted on the vehicle.
Inheriting the internal structure of the silencer installed in the RPM-4in2in1 F-TYPE, it produces a deep sound at low RPMs and a unique, exhilarating racing sound at high RPMs.
The outer cover material is available in the following three types:
・Aluminum alloy A6063S
・Stainless steel SUS304/Mirror finish
・Titanium TP270
●Component Structure
This is a full exhaust system consisting of five parts in total: "four front exhaust pipes (from the engine to the manifold)" and "one tail ASSY (from the manifold including the silencer)."
●Mounting Condition
It is fixed to the vehicle at two points: the engine exhaust port and the tail stay.
When installing at the engine exhaust port, a genuine HONDA free flange (exhaust holder) is used.
※Genuine HONDA free flange (exhaust holder) and exhaust gaskets are not included, so you will need to prepare them separately.
●Silencer Structure Requirements
The RPM-4in2in1 F-TYPE allowed for the removal and attachment of the inner silencer for racing use or repair purposes. However, many users would remove the inner silencer when riding on public roads, which went against the original intention. Therefore, RPM welds and fixes the inner silencer.
※Sound volume adjustment and back pressure adjustment are not possible in the new factory-shipped condition.

■Compatible Models
HONDA
CB400FOUR (1974-)

■Specifications
Silencer Cover: Titanium
Exhaust Pipe: Steel Plated
Fitting Type: Full Exhaust
Silencer Size: φ67×300
Oil Change: 〇
Oil Filter Change: ×
Tandem: 〇
Road Legal: 〇
Proximity Exhaust Noise Value: 99db

■Notes
※Only the muffler is for sale. The vehicle in the image is for installation reference.
※Images are for illustration purposes. May include products of different sizes or colors.
※Product design and specifications are subject to change without notice. Please be aware.
※This product is made to order, so cancellations after ordering are not possible.
※As this product is made to order, it may take some time for delivery. Please also note that there may be unannounced discontinuations or specification changes by the manufacturer. Thank you for your understanding.