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I acknowledge that the product(s) being purchased () was/were designed and intended for closed course competition use only. The product(s) is/are neither designed nor intended for use on public roads or land and is against Federal and State regulations to do so. By proceeding with this purchase, I , agree to only use the product(s) for closed course competition.

If an ECU tune was purchased, please send your unmodified and undamaged OEM ECU to TST Industries, located at 623 Pleasant St, Lake Helen, FL 32744.

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Yoshimura Race RS-12 Stainless Full System Exhaust for the Suzuki DR-Z4S / DR-Z4SM 2025+

  • Yoshimura Race RS-12 Stainless Full System Exhaust for the Suzuki DR-Z4S / DR-Z4SM 2025+
  • Upgrade your Suzuki DR-Z4 with Yoshimura's signature sound, style, and performance.
  • Stainless steel construction.
  • Yoshimura's RS-12 canister features a carbon fiber exhaust cap.
  • Level up your Suzuki DR-Z4S / DR-Z4SM's style and performance with the Yoshimura RS-12.
  • Unlock more peformance with one installation.
  • Performance figures provided by Yoshimura.

Yoshimura Race RS-12 Stainless Full System Exhaust for the Suzuki DR-Z4S / DR-Z4SM 2025+

Yoshimura Race RS-12 Stainless Full System Exhaust for the Suzuki DR-Z4S / DR-Z4SM 2025+

Gain performance, style, and that unmistakable Yoshimura sound with the new Race RS-12 Stainless Full System Exhaust.

Applications:

Suzuki DRZ400S / DRZ400SM | 2000 - 2024

AVAILABILITY: This item is shipping directly from Yoshimura. Shipping times may vary depending on Yoshimura availability. All other items will ship separately from TST within 1-3 business days.

RACE EXHAUST: This exhaust system is for closed-course competition only and is not intended for public roads or land.

California residents will be charged state tax.

Have a Question About This Product?
SKU YOSH-1043=1
2025 +/DR-Z4S/Suzuki
Yoshimura Race RS-12 Stainless Full System Exhaust for the Suzuki DR-Z4S / DR-Z4SM 2025+
 
Price: $899.00
Quantity Out of stock

ATTENTION:

If buying this product as part of the Buy Together bundle below, define these options there.

▾

RACE EXHAUST
This exhaust was designed and intended for closed course competition use ONLY. This product is neither designed nor intended for use on public roads or land and is against Federal and State regulations to do so.

  • Product Details
  • In the Box
  • Recommended Accessories

Features

  • Full system exhaust
  • Stainless construction
  • Includes USFS spark arrestor SA-21-K and custom stainless Yoshimura heat shield
  • Carbon fiber end-cap
  • Stainless steel header and muffler
  • 5.5% increase in horsepower at 6640 RPM
  • 2.8% increase in torque at 5180 RPM
  • 7.2 lb component weight reduction when compared to stock
  • Made in California

Description

After dominating trails and streets for over 20 years, the iconic Suzuki DR-Z received a bold refresh for 2025. The new DR-Z4S and DR-Z4SM feature a 398cc, water-cooled single-cylinder engine with modern fuel injection, and when combined with the other updates, it marks a significant evolution from the outgoing model. To unlock even more performance of the updated Suzuki, Yoshimura engineered this RS-12 Stainless Race Series Full System Exhaust. It provides substantial power and torque improvements, as well as leveling up the style and sound of your Suzuki DR-Z4. With a 5.5% horsepower boost at 6,640 RPM and a 2.8% increase in torque at 5,180 RPM, we think this is exactly what your DR-Z4 needs to unlock even more thrills as you twist the throttle!

Performance figures stated are reported with the USFS spark arrestor SA-21-K installed.

System Configuration Sound Level (2000 RPM) Sound Level (5000 RPM) Weight
Yoshimura RS-12 Full System 90.4 dB 93.4 dB 10.6 lbs
Stock system 74.4 dB 84.4 dB 17.8 lbs

Sound levels measured using SAE J2825 standard with installed spark arrestor.

RACE EXHAUST: This exhaust system is for closed-course competition only and is not intended for public roads or land.
  • Yoshimura Race RS-12 Full System Exhaust
warning

WARNING: Cancer and Reproductive Harm - www.p65warnings.ca.gov

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TST Programmable And Sequential LED Integrated Tail Light For Yamaha MT-09 2021-2023
TST Programmable And Sequential LED Integrated Tail Light For Yamaha MT-09 2021-2023
I love it. Can't stop looking at it every time I get off the bike :) Great product, feels and looks high quality. It is very bright even in bright daylight. Installation was not a problem, also there is a very comprehensive video on it by TST. Highly recommend to every owner of MT09 to buy it, it's well worth the money! Great job guys!
Vlad Presada
Jul 6, 2025
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