Description
AVAILABLE FOR PRE-ORDER
Everyone knows it's hard to beat the performance of a stock Yamaha exhaust. Rarely is such an effort achieved, but in true Yoshimura form, they outdid themselves.
The best of both worlds. Their first foray into the concept of the hybrid MX system has been with the Honda CRF450RWE, where the durability of the stainless steel header and a light weight titanium muffler reaps rewards without sacrifice. The benefits of the hybrid system revolves around using a stainless steel header where durability is an issue, but focusing on a lighter version of the muffler where we can save big on weight. This concept finds a sweet spot at the intersection of durability. weight, and budget.
Massive Power Gains
Throughout the entire power spectrum our engineers outperformed the stock unit at every RPM. Even torque across the spectrum is improved. Up 9.3% hp gains at 6,200 rpm and up to 9.6% torque is achieved at 6,200 rpm. Even all the way up to the top their hybrid RS-12 system has substantial performance.
Significant Weight Savings
The new RS-12 hybrid system comes in with less weight than stock thanks to the power producing titanium/aluminum RS-12 muffler.
Header Resonator
The new Yamaha YZ450F system boasts a volume specific header resonator that not only looks like a work of art, it helps put the power where its needed.
Muffler Resonator
Inside the front cap of the power producing RS-12 is another resonator that enhances the power characteristics of the new YZ.
109dB Capable
If you're a professional racer you know how important passing the FIM and AMA sound regulations can be. Their new RS-12 system is built with that in mind and can pass the 109db sound standard with an optional INS-39-K.
Easy Install!
The new RS-12 is easy to install due to the where the header uses its machined joint. In fact its been said that the new system goes on much easier than the stock one comes off. We agree!
Proudly engineered, developed, and built in Chino, California—Yoshimura quality you can count on.
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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.
- Brand: Yoshimura