Yoshimura RS-9 Full System - Kawasaki KLX140/G/L/R/RF/RL 2011-2024
- Ships next business day
- 30-day hassle-free returns
- Call us: 541-668-7503
- Secure checkout — Pay in 4 available
Upgrade your bike with the Yoshimura RS-9 Full System. The RS-9 uses a parallelogram-shaped muffler with maximized internal volume and a straight, single core baffle, plus Yoshimura's tunable insert system so you can set it up for the track or the trail.
This system features a stainless steel header, aluminum canister and carbon fiber end cap, built to the same standards as Yoshimura's factory race exhausts. Yoshimura builds exhaust systems for factory race efforts, and the knowledge they gain on the track goes straight into their consumer products. That cycle of development is what makes the Yoshimura name synonymous with quality and performance, delivering more power, lower sound levels and better mass centralization. Every Yoshimura system is designed and dyno tested for the specific model it fits, so you get real gains you can feel, not just more noise.
✓ Fits
- 2011-2024 Kawasaki KLX140 / KLX140G / KLX140L / KLX140R / KLX140RF / KLX140RL
✓ Features
- Parallelogram-shape muffler
- Maximized internal volume
- Straight, single core baffle
- Tunable insert system
- Spark arrestor and sound insert compatible
- Bolt-on fit for the listed models
- For closed-course competition use only
✓ What's Included
- (1) Yoshimura RS-9 Full System
- Spark arrestor sold separately
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📦 Shipping Information
In-stock items ship next business day. ModQuad parts dispatch Monday through Thursday.
Made-to-order and custom powder coat items show their lead time at the top of this page, right next to the truck icon. These are built fresh for you, so timing varies by brand and current backlog.
Need something by a specific date? Call us at 541-668-7503 before ordering and we will check stock and ETA on that exact part. We can often point you to an in-stock alternative from another distributor.
Questions? Contact us, we respond within 24 hours.
