1. We are no longer supporting TapaTalk as a mobile app for our sites. The TapaTalk App has many issues with speed on our server as well as security holes that leave us vulnerable to attacks and spammers.
    Dismiss Notice

4 Stroke Performance


  1. 4 Stroke Turbos/Supercharger

    Lets talk Turbos and Supercharger....
    Discussions:
    7,481
    Messages:
    73,831
    Latest: Nytro motor in Sidewinder? RobX-1, May 24, 2021
    RSS

  2. 4 Stroke Nitrous

    Lets Talk Nitrous....
    Discussions:
    393
    Messages:
    3,475
    Latest: Clutch weights polarisconvert, Apr 2, 2021
    RSS

  3. 4 Stroke Air Intake

    Post all of you Air Filter questions, EVAC and mods to filters....
    Discussions:
    394
    Messages:
    4,128
    Latest: IAC cleaning question Seann17, Apr 1, 2021
    RSS

  4. RB3, PCIII, other EFI Maps

    A place for members to down load and share a EFI maps
    Discussions:
    158
    Messages:
    1,001
    Latest: 2011 XTX Ulmer/PC5 MAPS blevis213, Mar 9, 2021
    RSS
  1. This site uses cookies to help personalise content, tailor your experience and to keep you logged in if you register.
    By continuing to use this site, you are consenting to our use of cookies.
    Accept Learn More...
    Dismiss Notice