F/I Mods & Tuning

Discussion Turbochargers, Superchargers, NOS and general FI issues.

Sort By:
Title
Replies ↓ Views
Last Message
  1. Jonathan
    Replies:
    129
    Views:
    7,674
  2. VaBchXRunner
    Replies:
    122
    Views:
    8,400
  3. drewXrunner
    Replies:
    122
    Views:
    7,827
  4. kfxpro32
    Replies:
    120
    Views:
    5,526
  5. rexrunner
    Replies:
    120
    Views:
    15,230
  6. triumphx
    Replies:
    119
    Views:
    3,479
  7. iniazy
    Replies:
    118
    Views:
    8,493
  8. gtmoy
    Replies:
    117
    Views:
    6,621
  9. DOGSTOY06
    Replies:
    117
    Views:
    6,059
  10. rexrunner
    Replies:
    116
    Views:
    7,153
  11. JPAYNE722
    Replies:
    115
    Views:
    3,831
  12. akakrill
    Replies:
    114
    Views:
    5,611
  13. sdxrunner619
    Replies:
    111
    Views:
    4,639
  14. babyboi2284
    Replies:
    111
    Views:
    3,515
  15. Spyder327
    Replies:
    110
    Views:
    5,003
  16. Yotaman
    Replies:
    108
    Views:
    3,206
  17. 5H4D0WD347H
    Replies:
    108
    Views:
    5,672
  18. dpartinvr4
    Replies:
    101
    Views:
    3,388
  19. justin13703
    Replies:
    101
    Views:
    3,807
  20. SpaceMonkey
    Replies:
    101
    Views:
    3,694

Thread Display Options

Loading...
  • About Us

    XR-Underground is a dedicated community of Toyota X-Runner enthusiasts that was launched in January 2007. X-Runner Underground.com, referred to as XRU by our regular members, offers an active discussion forum, group events, specialty merchandise, a welcoming community of owners and the most information you can find about the Toyota X-Runner on the internet!
  • Quick Navigation

    Open the Quick Navigation

  • Like us on Facebook

  • Your donations keep XRU going

    XRU is a forum for the users, by the users. We receive very limited funding from vendors so we really rely on donations to cover our operating costs and to provide products and giveaways at events. Every dollar helps!

    If you are able to donate, we'd really appreciate your help.