CHINO, CA – April 2, 2025 – (Motor Sports NewsWire) – 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! We developed our 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. These gains were made with our included/installed USFS spark arrestor SA-21-K! A custom stainless Yoshimura heat shield is included.
If a Race Series full system is not what you’re looking for, we developed our RS-12 slip-on to pack performance on the DR-Z4S without compromising 50 state legality. The RS-12 Enduro Series slip-on provides great performance 4.1% in hp @8,000rpm and 2% increase of torque @4,800rpm with spark arrestor installed. This slip-on includes our installed USFS approved spark arrestor SA-19-K to make is easier to roll right out to your favorite off-road riding area. A custom stainless Yoshimura heat shield is included.
Yoshimura’s RS-12 is proudly designed, developed and manufactured in Chino, California.
A USFS Spark Arrestor comes installed with the RS-12 for the new DR-Z4 S/SM
A USFS Spark Arrestor comes installed with the RS-12 for the new DR-Z4 S/SM
Yoshimura RS-12 full system sound vs. stock exhaust.
Yoshimura RS-12 slip-on sound vs. stock exhaust.
Power gains with our RS-12 Race Series full system for the Suzuki DR-Z4S/SM packs a punch!
Our RS-12 Enduro Series slip-on developed for the Suzuki DR-Z4S/SM hits it out of the park!
2025 Suzuki DR-Z 4S/SM RS-12 full system and slip-on pricing and Info
2025 Suzuki DR-Z4S/SM RS-12 Race Series FS SS/SS/CF WF
Part # 116610S520
MSRP: $849.00
Hi-res images available here: https://www.dropbox.com/scl/fo/pvxy5cg9ouwwzpdyynb0m/ANaih7vnn0d-DvBxFLCrj8I?rlkey=orpnfx013mt1ck1277w5a7k94&st=3xeo837t&dl=0
Weights:
Stock system: 17.8 lbs.
Yoshimura RS-12 full system: 10.6 lbs.
Sound levels:
(Using J2825 standards) with installed spark arrestor.
2000 rpm
Stock: 74.4dB
RS-12: 90.4 dB
5000 rpm
Stock: 84.4 dB
RS-12: 93.4 dB
2025 Suzuki DR-Z4S/SM RS-12 Street Series SO SS/SS/CF WF
Part #116612S520
MSRP: $699.00
Hi-res images available here: https://www.dropbox.com/scl/fo/990ovnr73gbk4npndmkk2/ACtJ2-4D6D47b-q6FKO62m4?rlkey=052md9idqgvhhg36a1b9e05zr&st=0in5hezu&dl=0
Weights:
Stock slip-on: 13.6 lbs.
Yoshimura RS-12 slip-on: 9.2 lbs.
Sound levels:
(Using J2825 standards) with installed spark arrestor.
2000 rpm
Stock: 74.4 dB
RS-12: 86.0 dB
5000 rpm
Stock: 84.4 dB
RS-12: 89.3 dB
About Yoshimura
Yoshimura is renowned for its Research and Development. But producing the finest exhaust systems in the world requires more than a big R&D department. Yoshimura is the leading manufacturer of exhaust systems because our commitment to R&D is matched by our dedication to uncompromising quality standards and our expertise in manufacturing pipes that meet those standards.
Source: Yoshimura Research and Development of America
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