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Yoshimura RS-12 Exhaust System Suzuki DR-Z4S / SM 2025-2026

Name: Yoshimura RS-12 Exhaust System Suzuki DR-Z4S / SM 2025-2026
Brand: Yoshimura
SKU: 10505837
Price: 959.0 USD
Availability: InStock
Rating: 5.00 (6 reviews)

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Motorcycle Muffler Repacking Explained and Made Simple by Yoshimura R&D

Stainless Steel/Stainless Steel/Carbon Fiber

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Material: Stainless Steel/Stainless Steel/Carbon Fiber

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This item is available as a Blem/Refurb. These are items that cannot be sold as "New" merchandise and are limited to stock on hand. See the product details for a description of the product's condition.

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Yoshimura RS-12 Race Series Exhaust System Suzuki DR-Z4S / SM

Yoshimura's RS-12 Race Series Full System is meticulously engineered to enhance the performance of the 2025 Suzuki DR-Z4S/SM, which comes fitted with a 398cc water-cooled single-cylinder engine featuring fuel injection. This exhaust system optimizes the off-road bike's performance, offering a significant increase in horsepower—by 5.5% at 6,640 RPM—and torque—by 2.8% at 5,180 RPM. It comes standard with a USFS-approved SA-21-K spark arrestor and includes a custom stainless Yoshimura heat shield for added durability. Crafted with precision and care in Chino, California, the RS-12 system ensures that DR-Z enthusiasts experience superior performance and quality.

Features:

Developed and tested over 24 months of factory level racing
Aggressive, intelligently designed, asymmetrical shape of the RS-12 allows for maximum muffler volume which helps manage sound, add power and provide more clearance for the rear tire and brake caliper
Improved performance gains and weight reduction
Just like the works systems Factory Racers use, RS-12 systems utilize precision machined joints which provide a superior fit and improve system life and performance
Works-look matte carbon fiber end cap with industry leading design
Carbon end cap covers inner cap mounted design which improves durability and eases servicing as compared to other sandwich mounting designs
New patent pending Precision Taper Fit (PTF) insert ring makes it easy to install and remove sound inserts and spark arrestors
Tapered muffler body inlet design of the RS-12 enables the system to be pushed forward thus helping with weight centralization without sacrificing performance
Proudly designed, developed and made in the USA

Weight:

Stock system: 17.8 lbs
Yoshimura RS-12 Full System: 10.6 lbs