tankyuong,
This link makes me wonder the same thing as you are asking. I do not plan to install either, but was curious. Although not so curious that I'm going to do much more looking than I have.
http://www.dynojet.com/
_________________
Dale
Huntsville, AL
2 x 2005 - Hers & His
Boots, socks, underwear, pants, t-shirt, jacket, gloves, & helmet.
http://www.youtube.com/user/jdeereanton
Riding on "Just Basic Shocks" - My shocks, while completely functional, have never even been nominated for an award.