Stage 1-7 Questions

Discussion in 'Engine, Fuel and Exhaust' started by Peso Joe, Jul 22, 2009.

  1. Peso Joe

    Peso Joe Member

    OK, I have been riding for quite awhile and have heard the terms Stage 1 Stage 2 Stage 3 etc...

    never really paid much attention nor did I ask about what it meant.

    Now I am wondering:

    What do these terms mean and where did it originate from?

    Also is there a website or link that details the different stages or am I to assume that this is all marketing hype and does not mean very much.

    Thanks to all replies and especially those that quote some sources for additional reading.
  2. whatyardwork

    whatyardwork Banned