Just picked up my Two Brothers titanium slip-on Exhaust for my 2009 Yamaha R1. I ordered the pipes from E&S Motorsports in Fort Saskatchewan AB. They told me it would take a week for them to come in, 3 days later they were in... If you are looking for anything new you should check them out.
The Two Brothers Exhaust looks absolutely sick and sounds just amazing!! AND the install was quick and easy.
Intro Music - Enter the Maze, Kevin MacLeod (incompetech.com) Licensed under Creative Commons "Attribution 3.0" http://creativecommons.org/licenses/by/3.0/
Yoshimura RS-4 Muffler Re-Pack Instructions
Maintain your Exhaust systems
longevity and performance by following our step-by-step instructions for
re-packing your Yoshimura RS-4 and RS-4D muffler.
Do you remember when your muffler was last repacked?
If not, it's probably time...
Unlike their OEM counterparts, Yoshimura Road Exhaust systems need to be repacked every 7,000
- 10,000 miles, while Off-road systems need to be repacked after 10-15
hours of use. Repacking your muffler at the suggested intervals is
essential for your Exhaust to perform
the way it was designed.
Dirty packing restricts airflow from your motor, which results in a loss of
power and degradation of sound. Repacking your muffler allows for freer
airflow from your motor, which restores lost power and improves the Exhaust sound.
At Yoshimura, we use advanced space-age fiberglass packing material for our
mufflers, along with high-strength stainless steel rivets. We also include
new badging to freshen up your muffler's appearance.