Just bought a RCM to replace my dented cobra pipe and am very pleased with it.(I am not deaf after riding, lol) But have a question. Is it worth it to replace the whole pipe on a four-stroke. Do you get any power gains over the stock header. Just curious.

 

yes it will give you more power, all through the powerband as far as i know but not nearly as much as an exhaust, but it will improve. if you think about any moe of a less restricted exhaust the more air can come out of the engine.

warrior350megamax

 

I thought that if you got a larger diameter head pipe, you gain more on the top end, but lose on the bottom end, and to compensate for the loss in bottom end power, you'd need a higher compression piston??? I'm not stating this as fact, It's just what I understood. Someone with more knowledge than me, willing to let us know if this is true? I was going to get the full yoshi system, but was told that a WB slip on would be better because the full yoshi system doesn't give you power from bottom to top. Still haven't figured out what to get.

thanks...

 

True. Bigger header = more top-end, smaller header = more bottom end. The Warrior has a pretty large header already so there would probably be little gain from changine that out. There is little gain to be had no matter what you do to the Warrior exhaust.