Yoshimura
The Yoshimura GSX-S1000/GT/S950 / KATANA R-77S Optional Stainless Steel Header is an exhaust header pipe designed to convert a Yoshimura R-77S slip-on into a full system. Built from stainless steel, it’s a focused upgrade for riders setting up a Race Series Exhaust System configuration on listed Suzuki models.
This header is intended to pair with the Yoshimura R-77S Slip-on (P/N. 1F0-19E-5W**) and is developed for track-day use or locations where a fully legal exhaust is not required. For GSX-S1000GT, the manufacturer notes that referenced test data is checked with the optional exhaust pipe and the R-77Slip-On used together. See the fitment table below for supported models and years.
Fitment
This optional header is purpose-built to turn a Yoshimura R-77S slip-on into a full exhaust system configuration. It is designed to be used specifically with the Yoshimura R-77S Slip-on (P/N. 1F0-19E-5W**), creating a matched setup for the models listed in the fitment table.
Engineering
Manufactured from stainless steel, this header is engineered as a dedicated component within Yoshimura’s Race Series Exhaust System lineup. It’s a straightforward path for riders looking to move beyond a slip-on-only setup while keeping the system components within the same product family.
Installation
Yoshimura notes that trimming or modification of under fairings may be necessary for clearance when installing this header, depending on spacing between the exhaust pipe and fairing. The manufacturer also states it is possible to use this product with a side pannier.
Materials
Yoshimura developed this optional stainless steel header as the matching exhaust pipe section needed to make an R-77S slip-on function as a full system. It is presented within the Race Series Exhaust System product line and is intended to integrate with the Yoshimura R-77S Slip-on (P/N. 1F0-19E-5W**). For riders building a complete Yoshimura setup on supported Suzuki models, this component provides the dedicated link between a slip-on configuration and a full-system layout.
Development
In combination with this Optional Stainless Steel Header, Yoshimura states that the EEC Approval number on the R-77S Slip-on (P/N. 1F0-19E-5W30) will no longer be valid. The manufacturer describes this product as developed for track-day use or for areas where it is not necessary to use a fully legal exhaust. Emissions Compliance is listed as QUALIFIED MANUFACTURER DECLARED "MODIFIED PART" in the specifications table.
Fitment
This header is listed for Suzuki GSX-S1000-F-FZ-Z 2021–2024, Suzuki GSX-S1000GT 2022–2024, Suzuki GSX-S950 2022, and Suzuki KATANA-1000 2021–2024. Yoshimura advises that trimming of under fairings may be necessary for clearance, and notes that modification of the under fairing might be required when the clearance between the exhaust pipe and fairing is too close. Confirm model/year compatibility using the fitment table below.
| Part Number | 194-19E-0010 |
|---|---|
| Brand | Yoshimura |
| Product Line | Race Series Exhaust System |
| Material | Stainless Steel |
| Shipping Weight | 1 lb |
| Emissions Compliance | QUALIFIED MANUFACTURER DECLARED "MODIFIED PART" |
| Max Gain: Power | +4.6% / 6,700rpm |
| Max Gain: Torque | +4.6% / 6,700rpm |
| Full System | -5.5kg (-46.2%) |
| Static Noise Decibel : dB/Measured at : rpm | 100dB / 5,500rpm(STD 96dB) |
| Main Material | Stainless Steel |
| Make | Model | Model Years |
|---|---|---|
| Suzuki | GSX-S1000-F-FZ-Z | 2021–2024 |
| Suzuki | GSX-S1000GT | 2022–2024 |
| Suzuki | GSX-S950 | 2022 |
| Suzuki | KATANA-1000 | 2021–2024 |
Fitment as listed by Yoshimura for part number 194-19E-0010.
