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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. Due to CARB restrictions, this item cannot ship to California. If you attempt to ship to California, your order will be cancelled and refunded.
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. Due to CARB restrictions, this item cannot ship to California. If you attempt to ship to California, your order will be cancelled and refunded.
From the garage to the street.
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Let customers speak for us
Very good business principles and products. Instruction videos on Youtube are very straight forward and demonstrative.
Everything is amazing quality and was packaged very nicely!
Everything was perfect fitment, looks, and function. Recomened
Perfect fit, installed onto 2021 Z400, difficult installation due to Kawasaki engineering, not TST.
Easy install and looks awesome
Solid set of dual-point frame sliders on my 2026 MT-09 SP. Build quality is excellent with sturdy materials and a clean finish that looks great on the bike. Installation was straightforward with clear fitment and no issues lining everything up. Definitely a quality upgrade that adds protection without taking away from the bike’s overall look.
Super easy install and to match my new integrated taillight with TST industries. MUCH BRIGHTER than the stock 500 bulbs for sure so I do feel a bit safer people can see me more. 100% would recommend buying and they look cool.
TST made it so easy to install with the YouTube videos and the sequential turn signals are sick. The LEDs and also very bright compared to the stock taillight and you get extra modes with what style you like. I would definitely recommend and ride safe everyone.
It's hard to explain how good this looks on the bike. It's clean, highly visible and looks like it came from the factory. If you're thinking about it, get it.
Looks sweet. I am going to buy one. But my question is where does the license plate light go? Your site is trying to pair my purchase up with a license plate light? Would like to know where that goes if I have the adjustable high mount?
This really added a layer of protection that is functional and aesthetically pleasing 👌. The install was super easy on my 2006 honda cbr600rr.
