Yoshimura RS-12 Works Edition Full System Exhaust for 2025–2026 Suzuki DR-Z4S / DR-Z4SM – Stainless Steel with Matte Carbon End Cap & Heel Guard (Includes INS-32-K Low-Volume Insert)

Description

After an impressive run of over two decades, 2025 brings an all-new Suzuki DR-Z4S/SM.
The new 398cc single cylinder water cooled engine is now fuel injected! Yoshimura developed their RS-12 Race Series full system exhaust to enhance every aspect of the new DR-Z and the response was just what the doctor ordered. The RS-12 Race Series Full System packed substantial gains in performance adding 5.5% in hp @6,640rpm and 2.8% increase of torque @5,180rpm. The RS-12 Race Series full system for the Suzuki DR-Z4S/SM packs a punch! These gains were made with the included/installed USFS spark arrestor SA-21-K! A custom stainless Yoshimura heat shield is included.
Weights:

• Stock system 8.09kg
• Yoshimura RS-12 full system 4.82kg

Sound levels:
(Using J2825 standards) with installed SA-19-K
2000 rpm

• Stock: 74.4dB
• RS-12: 90.4dB

5000 rpm

• Stock: 84.4dB
• RS-12: 93.4dB

Race Series Exhaust System

If you’re looking for that competitive edge, look no further than Yoshimura. These exhaust systems are designed with nothing but power in mind. Each system is developed in accordance with noise compliance regulations imposed by most race sanctioning bodies worldwide.
This exhaust is designed and intended for closed course competition use only, and is labelled as such, it is neither designed or intended for use on public roads or land.
This product was designed to fit on a standard equipped motorcycle, as delivered from the factory. OE and Aftermarket accessories not found on a bike as delivered from the factory, may not be compatible with this product.

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