DR-Z4 S/SM 2025 RS-12 Stainless Slip-On, w/ Stainless Muffler

The RS-12 Enduro Series is the latest generation of performance exhausts from Yoshimura, developed specifically for the all-new 2025 Suzuki DR-Z4S/SM. Engineered with precision to deliver increased power and torque while meeting 50-state emissions compliance, the RS-12 brings cutting-edge design and performance together in a durable, trail-ready package. Proudly developed and manufactured in Chino, California, this system includes a USFS-approved spark arrestor and a custom stainless steel heat shield for serious off-road capability.

Key Features:

• Tapered, pyramidal muffler body for increased performance and sound tuning

• Custom stainless Yoshimura heat shield included

• USFS Approved spark arrestor (SA-19-K) pre-installed

• 4.4 lbs lighter than stock configuration (9.2 lbs vs. 13.6 lbs)

• +4.1% horsepower @ 8,000 RPM

• +2% torque @ 4,800 RPM

• Sound (J2825 standard w/ SA):

  • 2000 RPM: 86.0 dB (Stock: 74.4 dB)

  • 5000 RPM: 89.3 dB (Stock: 84.4 dB)

Please be advised that delivery of this item may take 1 to 2 weeks. Thank you for your patience and understanding.

Fits:
DR-Z4S/SM: 2025