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 madewithour included/installed USFS spark arrestor SA-21-K! A custom stainless Yoshimura heat shield is included.
Yoshimura's RS-12 is proudly designed, developed and manufactured in Chino, California.
Matte Carbon Fiber end cap
All-new faceted end cap
Exclusive Yoshimura Works Finish
Made in USA
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
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.
Attention international customers: This product was designed and tested to be compatible with vehicles in the U.S. marketplace only. Compatibility, including fitment and performance, may vary by marketplace.
We appreciate your business and are committed to providing you with the exceptional service and timely delivery we are known for. Please review the shipping information below for your order.
*FREE U.S. Shipping:
Orders with a subtotal of $99.00 or above qualify for Free Standard Ground Shipping to the Contiguous 48 United States. Hawaii and Alaska do not qualify and will be reflected with rates at checkout.
Order Processing Time:
Orders are usually processed within 24-48 hours after the order has been placed. Custom or special order items may take longer to process, anywhere from 3-14 business days.
Products with Shipping Notices:
You may find that some variants of products have backorder or extended shipping times attached. Upgrading to Expedited shipping options will not bypass these notices, and we advise contacting our team if you have questions or need clarification.
Shipping Methods:
UPS, FedEx, USPS Standard Shipping (1-5 business days) Expedited Shipping* (2-3 business days) Express Shipping* (1-2 business days)
*Note: Expedited & Express Shipping options do not bypass products and variants with backorder or extended shipping times.
Packaging:
Rest assured that all items will be securely and safely packaged to prevent any damage during transit. Fragile or high-value parts will be packaged with additional protective materials, such as bubble wrap or foam padding.
Shipping Rates:
Expedited, international, and states not in the contiguous 48 (ie AK and HI) shipping rates vary based on the size, weight, and destination of the package. You can view the estimated shipping costs for your order during the checkout process before placing your order.
Order Tracking:
Once your order has been shipped, you will receive an email with the tracking number and carrier information. You can also track your order status by logging into your account.
International Shipping:
We ship worldwide! Please note that international shipping rates and delivery times may vary based on destination. Customers are responsible for any customs fees, import taxes, or additional charges that may apply.
Instructions / What's Included PDF