Power Up Your 2011 YZ250F with a Yoshimura RS-4

Yoshimura RS-4 / 2011 Yamaha YZ250F

The RS-4 is a unique design with predicated power

YOHSIMURA PRESS RELEASE

Chino, Calif. – October 13, 2010 – Getting the most out of an engine is what the engineers at Yoshimura R&D do best, and they’ve wasted no time in developing a new version of their race-proven RS-4 exhaust system to maximize the performance of the 2011 Yamaha YZ250F.

This bike’s engine was redesigned to make more power through the low and mid range, while maintaining the top-end rush that has made the bike so popular among motocross racers. By adding a Yoshimura RS-4 slip-on or full system, riders will feel a significant boost in power and torque all the way from idle to redline.

The RS-4 is Yoshimura’s most advanced off-road exhaust system yet. The compact RS-4 muffler utilizes a duplex chamber design to maximize flow while offering excellent noise reduction. The end result is a lightweight muffler that will lower sound emissions while increasing performance.

RS-4 systems can be tuned to match whatever noise restrictions you might face through interchangeable sound inserts, which range from the USFS approved spark-arrested insert to the AMA pro racing legal insert.

All RS-4 exhausts are manufactured from the highest quality lightweight materials, and come in a variety of finishes. The slip-on model features stainless/aluminum construction, and a stylish carbon fiber end-cap to set your machine apart. Full systems are available in stainless/aluminum, titanium, or titanium/carbon finishes.

As the official exhaust of the Rockstar Makita Suzuki Yoshimura Supercross/Motocross team, this exhaust was designed with one thing in mind, winning races. The RS-4 is a unique design with predicated power, a side benefit of a quiet, earthy exhaust note that speaks volumes for performance.

This Full System comes with a titanium header and mid-pipe, carbon muffler sleeve, installation hardware, and detailed instructions to get you moving! The Titanium Systems come with a AMA Pro Racing sound insert installed in the muffler.

About Yoshimura R&D of America: Yoshimura is “The Leader in Performance” and has been for more than 55 years. With unmatched skills, knowledge, and passion for racing, Yoshimura is on the forefront of the aftermarket exhaust industry. Yoshimura pipes are race bred and feature the same legendary performance, fit and quality that has been their trademark for more than five decades. To learn more about Yoshimura and view the wide variety of performance products, visit www.yoshimura-rd.com

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