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

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

Yoshimura’s RS-12 exhaust systems are tailored for the 2025 Suzuki DR-Z4S/SM, enhancing the bike’s performance with its fuel-injected 398cc engine. The RS-12 Race Series Full System not only increases horsepower by 5.5% at 6,640 RPM and torque by 2.8% at 5,180 RPM but also comes with an integrated USFS-approved SA-21-K spark arrestor and a stylish stainless Yoshimura heat shield. Crafted with precision in Chino, California, the RS-12 series is a testament to Yoshimura's commitment to quality for DR-Z riders.

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