PARTS
PICK UP
PARTS

The ultimate full exhaust for the SUZUKI Hayabusa will be available soon! The best build quality in YOSHIMURA history!

 15 min read

This prototype full exhaust for the SUZUKI Hayabusa, which was announced as coming soon at the March Motorcycle Show, was on display in May. It was revealed that this exhaust has been built even better than any YOSHIMURA exhaust released in the past, so Hayabusa owners should definitely check it out!

The champion of YOSHIMURA exhausts

The demo bike on display was equipped with the dual titanium full exhaust system that had been shown for the first time at the motorcycle show.

■This is the Hayabusa with the full exhaust system installed. The feel of the merge collector visible under the cowl and the exhaust pipe under the step is very race-like, which is characteristic of a bike with a full exhaust system. The catalytic converter is located just below the swingarm pivot, but is much smaller than the stock converter, so it is not noticeable at all.

Shaped like the R-11Sq R

The basic shape of the silencer is the same as that of the "Slip-on R-11Sq R Dual Cyclone" exhaust, which went on sale May 10. The slip-on has a choice of silencer cover finishes: SSF (Satin Finish Cover), SM (Metal Magic Cover), and STB (Titanium Blue Cover), which will probably be available for the full exhaust as well. The silencer cover on the demo bike was the STB (Titanium Blue Cover), which weighs the least of the three.

■The carbon cover at the silencer end has a sharp look, accentuating the edges, which is the same as the slip-on. By not using the usual silencer band it has achieved suberb rigidity and a sturdy hold so that it doesn't sway.

The silencers are similar but not quite the same

There are distinct differences between the slip-on and full exhaust. The biggest visible difference is the mesh at the silencer end. This mesh on the exhaust port is familiar as being used in recent years in motoGP and the EWC (Endurance World Championships). Although YOSHIMURA is known for competing in the Suzuka 8 Hours Endurance Road Race, this is just one of the EWC races held throughout the year. In fact, YOSHIMURA has been participating fully in the EWC since 2021, and feedback from their race experience has been poured into this new product. This mesh was originally designed to prevent gravel from getting into the engine and causing damage in the case of a crash or going off the course during a race. And so it may seem purely visual when used on public roads, but there is no way that YOSHIMURA would equip their top quality exhausts with a meaningless feature. In fact, it was found that the mesh increases the exhaust pressure and has a positive effect on power output characteristics.

■The obvious difference is the mesh cover at the silencer end. Because of this, you can tell at first sight that it is a full exhaust, but it is not just there to differentiate it from the slip-on, it is also affects the power output characteristics.

■A close-up of the mesh. It is not just a plain mesh, but is marked with the YOSHIMURA logo.

■This is the mesh part of the exhaust installed on the demo bike at the Tokyo Motorcycle Show. It appears to be a laser-engraved logo.

Different silencer cover materials

Even though the silencers on the full exhaust and the slip-on have the same shape, they use different materials. The most easily distinguishable part is the portion of the cover just before the silencer. For the slip-on silencer, it is made of stainless steel and has a beautiful polished surface. For the full exhaust, on the other hand, it is made of titanium. The surface finish is also different, with a satin finish instead of a polished finish. This change gives off a very different look when installed. The feel is similar to that of YOSHIMURA racers competing in the EWC.

■This portion of the silencer cover for the full exhaust has the same matte texture as the exhaust pipe. The material is lightweight titanium.

■This is an image of the slip-on silencer. Note the shiny cover at the front of the silencer, which is made of stainless steel.

Differences that cannot be seen

Although it is not obvious from the outside, there is actually a difference inside the silencer as well. In the case of the slip-on exhaust, stainless steel is used for the noise reduction perforated pipe inside the silencer, but in the case of the full exhaust, all the internal parts are made of titanium, so the perforated pipe is titanium too! It is very rare to have an exhaust made entirely of titanium, including the perforated pipe, and this alone makes this full exhaust worth it. Though perforated titanium pipes are known to have short life spans in exchange for their light weight, YOSHIMURA quality ensures that it will not break, as proven by their EWC race results.

■Although you can't see it from the outside, even the perforated pipe is made of titanium. Of course, it is lighter than stainless steel.

Nothing but YOSHIMURA's finest

Of course YOSHIMURA has pulled out all the stops preparing their highest quality exhaust for SUZUKI's flagship Hayabusa. This full exhaust for the Hayabusa is the end result of a pursuit of performance in a different line from their usual hand-bending. The welds are beautiful as always, but another key point is the installation of two small sized catalytic converters, which are placed in inconspicuous positions to take advantage of the twin-pipe design. Since the catalytic converter area is doubled, exhaust efficiency is not compromised in the name of air purification performance. The silencer capacity is also doubled, which contributes to noise reduction. The carbon heat guards appear to be the same as the slip-on, but what is noteworthy is how they are secured. While most heat guards have screws visible from the outside, these heat guards only show carbon and nothing else. It's a small detail, but adopting a time-consuming method for the sake of quality proves that this product is top of the line.

■The catalytic converter is built into the slightly thicker section that you can see behind the side stand (two catalytic converters are used since this is a dual exhaust). The carbon heat guard surface has no visible screws, which is another sign of great quality.

■From a normal viewpoint, it looks so natural that it is hard to tell how the carbon heat guard is even attached. The shape of the catalytic converters is also very nice for an overall stylish look.

■The view from behind packs a punch. It might even look more "Hayabusa-like" than with the stock silencer...

Orders for the slip-on type started on May 10th

The slip-on type with a silencer of almost the same shape is already on the market. The suggested retail price for the slip-on is 277,200~ JPY (including tax). The silencer in the image is the STB (Titanium Blue Cover) with a suggested retail price of 305,800 JPY (including tax). As noted above, the basic shape of the silencer is the same as the one used for the full exhaust, with the difference being that there is no mesh at the silencer end and the cover is polished stainless steel. There is a clear difference in appearance when the silencer is installed, even though they have the same shape. The full exhaust has a unique atmosphere that can be described as "powerful" or "stunning". However, the price of a full exhaust is sure to exceed that of a slip-on, which will be a dilemma for owners.

■The presence or absence of the mesh at the silencer end is probably the first thing everyone will notice. The slip-on silencer has no mesh. The portion of the cover just before the silencer is made of stainless steel on the slip-on, with a polished surface. Hayabusa owners who want only the best to match their flagship bike should choose the full exhaust.

Anticipated Specifications

The following specs are known at this time:

■Compatible bike model: HAYABUSA (21-23)
■Compatible model number: 8BL-EJ11A
■Compatible engine model: DXA1
■Material: Full titanium

Release date: Around summer of 2023

Close proximity and acceleration noise volume, as well as weight are unknown at this time, but the weight should be astonishingly light, benefiting from the full titanium specification, despite the disadvantage of having two pipes. It is certain that it will have the high quality expected from YOSHIMURA, a high degree of sturdiness that will not take damage from a minor fall, and the durability to last. It will definitely leave its mark in YOSHIMURA history as the ultimate exhaust made of the best materials, with the best performance, and the longest life. The expected name of the product is "Titanium Machine Bent R-11Sq R Dual Cyclone".

■The titanium exhaust pipes peering bewitchingly from beneath the under cowl will be a privilege reserved for full exhaust owners. Once actually put into use, they will stand out even more with heat coloring.
Yo
Yo

editor

Yo

Webike Japan's global merchandiser who is passionate about motorcycles. Born in Japan, and spent his childhood in the US. 25 years of riding experience mainly on the tarmac and motorcycle market. He loves products made in Japan and considers himself a "Japan Parts evangelist".