Yoshimura - RS-12 Full System (Gas-Gas)

Yoshimura – RS-12 Full System (GasGas)

Born from over two years of factory-level testing and race development, the Yoshimura RS-12 Full System transforms your GasGas into a sharper, more responsive machine. With its asymmetrical muffler shape and tapered inlet design, the RS-12 boosts power and torque while improving mass centralization — giving your bike a more balanced, precise feel on the track or trail.

The system’s matte carbon fiber end cap, precision-machined joints, and handcrafted welds show Yoshimura’s unmatched attention to detail. The patent-pending Precision Taper Fit (PTF) insert ring allows for fast and easy insert or spark arrestor swaps, while the RS-12’s internal design manages sound and airflow for smooth, controllable power across the rpm range.

Why We Like It:
It’s a perfect pairing for GasGas — lightweight, clean, and aggressive. The RS-12 gives you that Yoshimura bark and the confidence-inspiring throttle control that makes your bike feel factory-tuned.

Why It’ll Work for You:
This system wakes up your GasGas, giving you stronger pull through the midrange and a cleaner hit off the bottom. It’s lighter than stock, centralizes mass for better handling, and looks just as good as it performs. Whether you’re racing or just want your bike to feel sharper, this setup delivers.

Variants / Options:
Includes complete header and mid-pipe assembly. Works with Yoshimura sound inserts, spark arrestors, and repack kits (sold separately).

Key Features:

• Over 24 months of development with Yoshimura’s race engineers
  
  

• Asymmetrical RS-12 muffler for optimized flow and reduced sound
  
  

• Carbon fiber end cap with precision detailing
  
  

• Tapered inlet moves system closer to bike’s center of gravity
  
  

• PTF insert ring for easy tuning and insert removal
  
  

• Improved throttle response and broader powerband
  
  

• Lightweight construction for better handling
  
  

• Proudly made in the USA